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Audience: Intermediate clear filter
Tuesday, May 26
 

10:00 CEST

Causality at scale: From statistical models to AI agents at Decathlon
Tuesday May 26, 2026 10:00 - 10:30 CEST
In a complex omnichannel environment like Decathlon’s, distinguishing between correlation and true incremental impact is the ultimate challenge. Traditional A/B testing often falls short when physical stores, local events, and global trends collide.

This session dives into our journey of scaling measurement through Randomized-Controlled Trials (RCTs) and Geo-experiments. We will explore how we utilize techniques to quantify the real value of business use cases, like testing the price elasticity of the products.

However, the real breakthrough lies in how we think about the evolution of this process. We will showcase our vision of Agentic AI: moving from manual statistical workflows to autonomous AI Agents that can help on the experiment design, select optimal control markets, and translate them into actionable business insights.

It's a great opportunity to see how we are democratizing rigorous data science to ensure every decision at Decathlon is backed by the "Truth of Causality."
Speakers
avatar for Sergio Benito

Sergio Benito

Decathlon
Passionate about sports and its benefits as well as helping people make better decisions through Data and Artificial Intelligence. I'm working at Decathlon for almost 10 years coming from the retail and thanks to that experience I joined at the Data & AI Spanish team, where I try... Read More →
Tuesday May 26, 2026 10:00 - 10:30 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

10:00 CEST

NASDAQ - Problem First: How to identify and build high-value AI in complex systems?
Tuesday May 26, 2026 10:00 - 10:45 CEST
AI is moving fast - and so are the decisions that come with it. For engineering teams working in complex, real-world systems, the challenge isn’t access to AI technology. It’s knowing where to start, what to build, and how to make the right choices across an increasingly sophisticated stack.
This talk shares practical approaches to identifying high-value AI use cases, drawn from experience designing and deploying production machine learning systems inside one of the world’s most demanding environments - global financial market surveillance across more than 50 exchanges and 15 regulators worldwide.
A core theme is the relationship between problem definition and technology selection. Before choosing a tool, understanding the process, the inputs and outputs, and what genuinely better looks like tends to produce stronger outcomes - and clearer architecture decisions.
The session also explores how classical ML, generative AI, and agentic systems can work together effectively. Rather than viewing these as competing approaches, the talk offers a framework for thinking about each as a distinct capability - and for combining them deliberately to build systems that are greater than the sum of their parts.
Attendees will leave with practical frameworks they can apply to their own environments, a clearer mental model for navigating the modern AI stack, and fresh perspectives on how some of the most complex AI systems in the world are being designed and deployed today.
Speakers
avatar for Sarah Bradley

Sarah Bradley

Director of Data Science & AI, NASDAQ
Sarah Bradley is Director of Data Science & AI at Nasdaq, where she leads the development and deployment of machine learning, generative AI, and agentic AI capabilities across Nasdaq Market Surveillance - a platform used by more than 65 exchanges and regulators globally to detect... Read More →
Tuesday May 26, 2026 10:00 - 10:45 CEST
1 - MAIN STAGE

10:00 CEST

How did AI totally change the way designers work in product teams?
Tuesday May 26, 2026 10:00 - 10:45 CEST
Over two years of integrating AI into our client projects, we've dramatically accelerated some activities (and broken others). This talk shares what we've learned: where AI truly changes a designer's day-to-day, what works in production, and what we've stopped delegating to it.

## Part 1 : Stepping back: what has actually changed

How AI is transforming a designer's daily work:

- On their core activities
- On the organisation and infrastructure that supports them (ops and design systems)
- On their collaboration with other disciplines (developers and product managers)

We'll also look at how the evolution of models and solutions now makes it possible to bet on specific tools for specific use cases. We'll see that the learning curve has dropped significantly: recent interfaces and models make these tools accessible to non-technical profiles — and that's precisely what's shifting the dynamic between disciplines.

## Part 2 : Real use cases: AI in the workflow

Real examples from client projects such as Devialet, Bpifrance, Rexel and CMA CGM: prototyping, AI-augmented user research, functional specification generation and production. We'll show concretely how these tools fit into the day-to-day of a project: when we use them, on which types of deliverables, and what it actually changes in the way we work.

We'll also talk about the recent shift towards a central artefact — the code — where everything else (documentation, specifications) is now generated automatically by AI (flows in FigJam, functional specs in Notion, etc.). In this setup, we'll show how documentation artefacts can update the code directly, cascading changes through the entire chain.

## Part 3 : Lessons learned, risks and perspective

A synthesis of what these experiences have taught us — including the pitfalls. Notably:

- The "workslop" phenomenon: AI output that looks finished but is structurally broken
- Technical literacy making a comeback as a key designer competency
- What can't be delegated — and why we've walked back on certain use cases
- What we take away from all this: craft (judgement, structure, rigour) remains what separates usable output from throwaway output, and it's what repositions the designer as a competitive advantage
Speakers
avatar for Maxime Frere

Maxime Frere

Partner, Principal Designer, Source.paris
**Maxime Frère**, Principal Designer & Partner at Source.paris.
I work at the intersection of design systems, product management and AI tooling, on projects for clients like Devialet, Bpifrance, Rexel and CMA CGM.
For the past two years, my daily focus has been understanding where AI actually saves time in the design → code pipeline, and where it creates opportunities and product building workflows... Read More →
Tuesday May 26, 2026 10:00 - 10:45 CEST
2 - GRAND PAVILION

10:00 CEST

Fail fast, fix faster: Stress-testing products with AI devil’s advocate.
Tuesday May 26, 2026 10:00 - 11:30 CEST
Innovative products rarely fail because of a single bad line of code or a flawed business hunch. They fail because of organizational silos. Product Managers, Developers, and Data Specialists often speak entirely different languages—and the glaring issues only surface on launch day.
This high-energy, 60-minute workshop flips the script. Using the Pre-Mortem framework, we won't ask you to build a successful product; we’ll ask you to dissect a complete disaster. Working in cross-functional, mixed tables (combining ADEO group and Decathlon people), participants will tackle a realistic, hypothetical launch. Business will have to face hard technical constraints, and Tech will have to answer to market realities.
The ultimate twist? The rescue plan your team builds must survive the final "Crash Test": a Generative AI acting as a ruthless "Devil's Advocate," programmed to expose the logical, data, or coding blind spots you missed.
Spend one hour learning how to fail safely in a room, so you don't fail spectacularly on the market.
Speakers
avatar for Vincenzo Bisceglia

Vincenzo Bisceglia

Leroy Merlin Italy
avatar for Alessio Setaro

Alessio Setaro

Digital Solutions Leader, Leroy Merlin Italy
**Alessio Setaro**
Digital Solutions & Transformation Leader — Leroy Merlin Italia
*20+ years in tech, digital, cybersecurity, digital transformation and people development. Former CISO, founder of Italian Cyber Security Defense Platform.*

I’m an executive leader with over 20 years of experience driving large-scale digital transformation, cybersecurity, and innovation across multinational organizations. My journey evolved from building cybersecurity excellence as CISO at Leroy Merlin Italy to leading end-to-end d... Read More →
Tuesday May 26, 2026 10:00 - 11:30 CEST
🏈 PRACTICE ZONE #3 135 Rue Sadi Carnot, Ronchin, France

10:45 CEST

PaintMyWall: From AI hackathon to production.
Tuesday May 26, 2026 10:45 - 11:15 CEST
Generative AI opens exciting opportunities to reinvent retail experiences. However, transforming a promising demo into a reliable product feature is far more complex than it first appears.

In this talk we will present how we moved from an AI demo built for a hackathon to a full fledged AI feature pushed to the millions of users of our mobile application.
Integrating image generation models into an existing application presents unique architectural challenges. How do you ensure the model quality despite the constraints of a mobile application? How do you balance costs with massive user scale?

We will trace the PaintMyWall journey from early AI experiments to introducing mobile capabilities, allowing customers to test colors on their walls with a simple photo, before taking a look at the opportunities this technology unlocks.
Speakers
avatar for Damien Toulouse

Damien Toulouse

Software Engineer, Ext - ADEO Services
I'm Damien Toulouse, a Software Engineer specialized in mobile app development since 2018, i've spent the last few years working on the Customer Mobile App first as a native Android developer then as a Flutter Developer.
avatar for Baptiste Thiriet

Baptiste Thiriet

Back-End Developer, Ext - ADEO Services

avatar for Pacome Morisot

Pacome Morisot

ADEO Services

Tuesday May 26, 2026 10:45 - 11:15 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

10:45 CEST

A framework for balancing tactical wins with North Stars.
Tuesday May 26, 2026 10:45 - 11:15 CEST
Last year, I navigated a unique challenge: working simultaneously across multiple teams with
polar-opposite leadership styles. PM-A was a short-term "speedster" focused on low-cost
experiments. However, PM-B is completely oppositie, investing half a year into a solution only to
find it brought no business value, with customers ultimately saying,
"This isn't what we wanted.

My analysis of our 2025 performance revealed a startling paradox: while 17 out of 24
successful A/B test wins(precise number needs to be checked) came from short-term fixes,
our product began to feel like a collection of disjointed patches. We often promise "we will
iterate it next quarter"

Now that we've handled the immediate issues, let's move on to other
priorities" or as usual other prio comes in the next quarter. We were winning the sprints, but
losing the vision.
This talk focuses on the two specific methodologies we used to reclaim our strategy: Design
Sprints for rapid alignment and ideation, and Amazon’s "Working Backwards" framework to
define the successful customer experience before writing a single line of code.

In this session, I share a 5-step framework to bridge the gap between
"now" and "later":

1. Vision Co-Creation: Combining Design Sprints and Working Backwards to build a
1-2 year roadmap that acts as a compass for every Jira ticket.

2. Goal Definition: Moving beyond conversion metrics to ensure every experiment has a
"Strategic Fit.

3. Continuous Discovery: Meeting customers regularly to separate short-term "noise"
from long-term "signals.

4 Experiment Alignment: Tactical ways to ensure small experiments are foundations for
the future, not just temporary band-aids.

5.The 70/20/10 Portfolio Rule: A resource model to protect team energy for Incremental
(70%), Evolutionary (20%), and Disruptive (10%) work.

Attendees will leave with a toolkit to transform from "pixel-pushers" into product strategists who
can balance immediate KPIs with a sustainable, long-term vision
Speakers
avatar for Mi Gyeong Lim

Mi Gyeong Lim

Decathlon
Senior Product Designer at Decathlon 12.2023-present
UX expert at Vodafone gmbh 03.2020-12.2023
UI/UX Designer at Interone, 05.2017-02.2020

https://www.linkedin.com/in/migyeonglim/
Tuesday May 26, 2026 10:45 - 11:15 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France

11:00 CEST

How open claw killed my SaaS: Architecting systems for autonomous agents.
Tuesday May 26, 2026 11:00 - 11:30 CEST
I spent months architecting a complex SaaS for blockchain trading. I built robust microservices, complex Backend-For-Frontend (BFF) aggregation layers, and intricate state management systems just to feed a heavy web application. And then, a single autonomous agent (Openclaw) bypassed all that complexity, proving it could cover the exact same needs with extreme, user-driven personalization.

This experience was a wake-up call: **Autonomous agents are becoming the new major channel of the web.**

For companies building large-scale B2C platforms, this is a massive paradigm shift. Tomorrow's customers won't just browse our websites; they will send their personal AI agents to find products, interact with our services, and complete transactions for them. If our architectures are solely optimized for human screens, we will miss this revolution.

In this 45-minute deep dive tailored for developers, architects, and tech professionals building the future of our applications, we will explore how to evolve our systems to serve this new channel:

- **Beyond the BFF (Backend-For-Frontend)**: Why optimizing our APIs solely for screens is no longer enough. We will explore how to transition from screen-specific aggregators to exposing atomic, autonomous "Capabilities" (Tools).

- **Designing Agent-Ready APIs**: How to design self-describing capabilities optimized for LLM execution, memory, and reasoning, allowing them to coexist with your traditional frontends.

- **Protocols of the New Webv**: A technical deep dive into **WebMCP** (standardizing how systems expose tools dynamically without web scraping) and **UCP** (granting agents transactional capabilities).

- **Live Demo - "*From API to Skill*"**: What happens when a platform isn't "agent-ready" yet? I will demonstrate how to wrap a traditional REST API (using Strava data) and transform it live into a standardized, agent-ready "Skill" to instantly generate a highly personalized AI sports coach.

Join me to discover how to future-proof your architecture, bridge the gap between human UIs and AI agents, and start building powerful capabilities for the agentic web.
Speakers
avatar for Bertrand Gressier

Bertrand Gressier

Staff Engineer, ADEO Services
For the past 25 years, I have been building software and navigating the incredible shifts in our digital landscape.From my early days developing on mainframes and the birth of the Web, all the way to today's Agentic Web revolution, I have always been driven by the evolution of technology.Currently... Read More →
Tuesday May 26, 2026 11:00 - 11:30 CEST
4 - MEDIUM STAGE

11:30 CEST

Transforming market expansion at Leroy Merlin Brazil: From descriptive geography to AI-Driven geo-intelligence.
Tuesday May 26, 2026 11:30 - 12:00 CEST
The Geo-Intelligence initiative represents a strategic shift in how market expansion opportunities are identified and prioritized. By leveraging the ArcGIS platform (a leading Geographic Information System - GIS, used to analyze, visualize, and manage spatial data), we developed an AI-driven, state-of-the-art geospatial framework that integrates spatial data, market indicators, and internal sales performance to support data-driven geographic decision-making.

The analytical architecture combines state-of-the-art statistical modeling techniques, geospatial data enrichment, and automated ZIP code geolocation, enabling accurate estimation of market potential and current market penetration at a granular region level.

This approach also supports marketing and commercial strategy, helping teams identify high-value territories, target campaigns more effectively, and allocate sales resources based on geographic opportunity.

In addition, the framework incorporates state-of-the-art predictive models for sales forecasting, allowing the organization to estimate potential revenue and prioritize expansion areas before investments are made.

Integrated within the ArcGIS ecosystem, this initiative transforms geographic analysis into a scalable decision-support capability, enabling faster, data-driven expansion strategies and improved revenue growth planning.
Speakers
avatar for Eliana Junko Ishizuka

Eliana Junko Ishizuka

Leroy Merlin Brazil
Eliana has been working at the Leroy Merlin Brazil for 11 years in the Market Research area within the Expansion division. She holds a degree in Geography from the University of São Paulo (USP) and has strong experience in geospatial data analysis applied to business. Throughout... Read More →
avatar for André Rabetti Alves

André Rabetti Alves

Data Scientist, Leroy Merlin Brazil
André Rabetti is a Data Scientist with over 4 years of experience in data analysis, market intelligence, and machine learning, working on transforming data into strategic business decisions. He is currently part of the data team at Leroy Merlin Brazil, where he works directly with... Read More →
Tuesday May 26, 2026 11:30 - 12:00 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

11:30 CEST

Designing conversational experiences.
Tuesday May 26, 2026 11:30 - 12:00 CEST
Chatbots have quickly become the default answer to conversational AI. They appear everywhere, sometimes useful, most of the time intrusive, and often represent the first idea teams reach for when exploring AI-driven interactions.

But conversational experiences extend far beyond chat interfaces and open text fields.

In this talk, we will explore how conversational design can be thoughtfully integrated across products and services. Drawing from real implementations at ADEO, we will share the design principles guiding our work, the case studies that shaped these guidelines, and the cross-disciplinary processes that help designers, product managers, and engineers deliver meaningful, coherent AI-powered experiences.
Speakers
avatar for Paul Thanasack

Paul Thanasack

Head of UX - AI & new technologies, ADEO Services
Hippolyte Beseme - Martin Molcrette - Miguel (Décathlon)
avatar for Florent Codet

Florent Codet

Product designer, ADEO Services


Tuesday May 26, 2026 11:30 - 12:00 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France

11:45 CEST

Ranking is a decision: Engineering a data driven truth system for AI-powered omni-channel search.
Tuesday May 26, 2026 11:45 - 12:15 CEST
**Every time a search engine displays a product, it makes a decision**. Not just a sort order, but a business decision that impacts customer experience, revenue, and fairness between competing products and channels. But what actually defines a good decision?
**A ranking system is effectively a judge: every query is a trial, every product is a candidate, and user behavior becomes the evidence**. The challenge is that this evidence is incomplete, biased, and distributed across channels. Clicks measure attention but not intent, while conversions capture purchases but miss delayed or offline behavior.
Search ranking must also balance competing objectives. The products people click are not always the ones they buy. Visually appealing items attract curiosity and traffic, while the products that generate revenue may appear less attractive at first glance. Optimizing purely for purchases can also favor high volume, low cost items and erode overall business value.
Time adds another layer of complexity. Some products perform consistently year after year, while others spike during seasonal moments or emerging trends. Ranking systems must decide whether to trust long term reliability or react to short term signals.
At the same time, behavioral signals are distorted by position bias, sparse data, and delayed attribution across channels. **In an omnichannel environment where customers research online and purchase later in store, the ROPO (Research Online Purchase Offline) effect makes naive metrics misleading**.
To address this challenge, the Search and Publication team developed a decision pipeline that industrializes the production of implicit judgments and acts as a **Truth Provider for AI systems**. The system transforms noisy behavioral signals into stable implicit judgments used to evaluate ranking systems, guide experimentation, train machine learning models, and provide reliable ground truth signals used by multiple internal products.
Built on top of BigQuery and dbt, the pipeline processes hundreds of millions of search sessions and several millions of products every day. It integrates multi channel evidence, bias correction, Bayesian priors, uncertainty estimation, temporal weighting, and composite indicators balancing discovery and purchase signals.
Attendees will gain a practical understanding of how to transform noisy behavioral data into reliable implicit judgments, and how to choose the right signals when discovery, conversion, and long term reliability pull ranking decisions in different directions.
**Ranking is not just an algorithm problem. It is a decision problem**. Every decision needs an honest definition of what good actually means.
Speakers
avatar for Mathieu Deleu

Mathieu Deleu

Lead Data Science, Ext - ADEO Services
Mathieu Deleu, Lead Data Science
Tuesday May 26, 2026 11:45 - 12:15 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

12:15 CEST

The OctoPerf MCP server.
Tuesday May 26, 2026 12:15 - 12:45 CEST
The idea is to show an MCP server running with our performance testing tool at ADEO global scale: OctoPerf.

The aim is to further democratize the implementation of performance testing, but above all to save considerable time in analyzing reports and improving the quality of script writing.

The idea is to show that, with AI, each team will now have an agent capable of communicating with our server and acting like a performance test engineer.
Speakers
avatar for Thomas Pitteman

Thomas Pitteman

Performance Testing Expert, Ext - ADEO Services
I could say that I have an unusual career path.

I initially worked in the international multimodal transport industry for about ten years, and then I decided to make a reconversion and merge work with passion, as a developer at first, and later I discovered the world of performa... Read More →
Tuesday May 26, 2026 12:15 - 12:45 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

From "Intuition" to data-driven precision: Automating store safety stocks at scale
Tuesday May 26, 2026 14:00 - 14:30 CEST
In the world of global retail, balancing product availability with inventory cost is a high-stakes game of precision. For years, managing "Safety Stock"—the buffer inventory held to mitigate demand and supply uncertainties—at Decathlon relied heavily on empirical rules, based on fixed numbers of coverage days regardless of the product, inducing high-level coverage values. While functional, this "one-size-fits-most" approach lacked the granularity needed to truly optimize a complex network of thousands of stores and unique items.

This session details the technical evolution of our Safety Stock solution, moving from these empirical rules to an automated, industrial-scale statistical engine. We will present a deep dive into how we built a system that computes dynamic safety stocks at the Item x Store x Day level.

Key technical pillars of the session include:
- The Statistical Engine: Moving beyond the baseline to formulas integrating forecast error variability, and lead time variability to meet specific target service levels.
- The Architecture: An overview of our data pipeline, utilizing dbt for weekly computations based on Decathlon's datalake and Talend flows to push granular safety stock quantities directly into SAP F&R.
- Backtesting & Impact: A transparent review of our pilot results across pilot product families, demonstrating a reduction in Days Sales of Inventory (DSI) of a few days without sacrificing availability.
- Product Segmentation: How we use ABC-XYZ classification to automatically tailor service level targets based on both business targets and demand predictability.

Join us to learn how we bridged the gap between supply chain theory and real-world data science and analytics engineering, transforming inventory management from a "best guess" into a precise, automated competitive advantage.
Speakers
avatar for Vianney Taquet

Vianney Taquet

Data & AI Manager, Decathlon
Data & AI manager at Decathlon since September 2022 on demand forecasting and inventory management within Decathlon Digital's supply chain department.
Tuesday May 26, 2026 14:00 - 14:30 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

The augmented cyber analyst: Lessons learned from our Multi-Agent experiment
Tuesday May 26, 2026 14:00 - 14:30 CEST
Securing our digital products is a major challenge. Cybersecurity analysts often lose precious time dealing with time-consuming processes and sometimes incomplete tools. This slows down the identification of risks and vulnerabilities, as well as the remediations that development teams need to apply.

To tackle this issue at ADEO, we decided to rethink our approach: what if we designed a squad of specialized AI agents ?

In this talk, we invite you behind the scenes of this initiative. You will discover our goals, our initial results, and how this multi-agent architecture could ultimately transform your team's day-to-day work.
Speakers
avatar for Millian Lamiaux

Millian Lamiaux

Cybersecurity Engineer, ADEO Services
My name is Millian Lamiaux, and I am an Apprentice Cybersecurity Engineer.

Passionate about the intersection of mathematics, software development, and security, I have been growing within ADEO Services for two and a half years. After contributing to Global Tech & Data Platform challenges within the Defense Solutions teams, I recently joined the SOC (Security... Read More →
avatar for Thomas Leleu

Thomas Leleu

Cybersecurity, ADEO Services
My name is Thomas Leleu, and I am a Cybersecurity Risk Analyst for the Product Digital Platform at ADEO.

Starting out as an intern, then an apprentice before joining full-time, I have been working in the group's cybersecurity department for nearly 10 years. Spending several years within the "Defense Solutions" team within the Global Tech & Data platform, I notably contributed to improving... Read More →
Tuesday May 26, 2026 14:00 - 14:30 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

14:45 CEST

DECATHLON X ADEO - Building e-commerce app in this mobile-first world
Tuesday May 26, 2026 14:45 - 15:15 CEST
In an increasingly mobile-first world, delivering a seamless, high-performance shopping experience is essential.
Join experts from Leroy Merlin / ADEO and Decathlon for an exclusive panel discussion on the evolution of their mobile applications.
During this session, we will dive into the unique challenges of managing large-scale e-commerce apps, from enhancing user engagement and optimizing conversion funnels to integrating omnichannel features that bridge the gap between digital and physical stores.
Speakers
avatar for Loick Depret

Loick Depret

Decathlon
avatar for Sylvain Guiot

Sylvain Guiot

Domain Leader, ADEO Services

Tuesday May 26, 2026 14:45 - 15:15 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France

15:00 CEST

A design process for dashboards
Tuesday May 26, 2026 15:00 - 15:30 CEST
Today, companies are producing more dashboards than ever before. Yet, many organizations find themselves with what I call "dashboard debt": dozens of screens, rarely used, and seldom linked to actual decisions.

We often hear that companies want to be data-driven. But in reality, many are becoming dashboard-driven instead. In this talk, I will defend a simple idea: stop delivering charts, and start delivering decisions.

The problem rarely lies with the charts themselves. It comes from what happens beforehand: a lack of discovery, requirements that are accepted too quickly, and solutions that are decided upon before the problem is even understood. When everything becomes a KPI, nothing is truly "key" anymore. And when an organization has 3 to 10 dashboards per employee, it's generally not a very positive sign of data debt management.

I will show how data teams can shift from a logic of producing dashboards to a logic of creating data products designed around real needs, thanks to a structured process of discovery, prioritization, and design. The goal is clear: fewer dashboards, but much more value.
Speakers
avatar for Aurélien Vautier

Aurélien Vautier

Dataviz Clarity
Aurélien Vautier est fondateur de Dataviz Clarity, une initiative dédiée à améliorer la manière dont les entreprises conçoivent et utilisent leurs produits data.

Depuis plus de dix ans, il travaille avec des équipes data et analytics pour transformer des dashboards souvent conçus comme de simples livrables en véritables outils d'aide à la décision. Son travail se concentre sur l'introduction de méthodes de design, de discovery et de... Read More →
Tuesday May 26, 2026 15:00 - 15:30 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

15:00 CEST

AI for Product: multi-agent product management
Tuesday May 26, 2026 15:00 - 15:30 CEST
Discover how to use a multi-agents strategy to improve and accelerate Product Management processes, from Strategy to Delivery.

We will share a framework and tools ready to use, as well as REX and usage examples.
Speakers
avatar for Pierre LEMPERIERE

Pierre LEMPERIERE

Deputy CTO, Adeo
avatar for Loïc Dilly

Loïc Dilly

ADEO Services

Tuesday May 26, 2026 15:00 - 15:30 CEST
2 - GRAND PAVILION

15:45 CEST

Beyond the chatbot: Engineering a multi-agentic lego-like ecosystem
Tuesday May 26, 2026 15:45 - 16:15 CEST
The era of monolithic LLM assistants is giving way to a more powerful, resilient reality: Agentic Ecosystems. In this session, we will explore how to transition from isolated AI tools to a modular, 'Lego-like' architecture of autonomous agents that reason, plan, and collaborate.

We will dive deep into the technical 'glue' that enables this synergy, focusing on ADK for orchestration, and the critical role of protocols like MCP (Model Context Protocol) and A2A (Agent-to-Agent) for seamless communication. You will learn how we differentiate between specialized sub-agents—focused on niche expertise like data or validation—and the 'Coordinator' agent that acts as the system’s brain to plan and validate results.

Using INES (Our Digital Instore Assistant) as our primary case study, we will demonstrate how this ecosystem provides high-value operational efficiency by simplifying access to information for store teams. We’ll share our lessons on how to work on an independent agentic ecosystem.
Speakers
avatar for Ruben Sastre

Ruben Sastre

Decathlon

avatar for Daniel Rozputyñski

Daniel Rozputyñski

Decathlon
Data Engineer & AI Engineer with 9 years of experience in Analytics & AI world, passionate about sports and technology.
Tuesday May 26, 2026 15:45 - 16:15 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

16:15 CEST

Beyond the hype: 3 Pentests and 2 GenAI services later, an LLM security survival guide
Tuesday May 26, 2026 16:15 - 16:45 CEST
Generative AI is no longer just a "Lab" project, it’s in production. But when you move from a playground to an industrial environment like Decathlon, the stakes change. Suddenly, "Prompt Injection" isn't a fun riddle; it's a potential data breach or a compliance nightmare.

In this session, we (PIC Data Team & Cybersecurity Team) share our raw, unfiltered journey of securing two major GenAI applications: a global translation engine and a content compliance engine.

We didn't just read the OWASP Top 10 for LLMs—we lived it through three rigorous professional pentests. We will walk you through the actual vulnerabilities the ethical hackers found and, more importantly, the concrete defense layers we built in our GenAI services to neutralize them.


Speakers :
Pierre-Yvan Devos (Data & AI Manager)
Karl Mongosso (Senior Machine Learning Engineer)
Philippe Lasek (Information Security Officer)
Speakers
avatar for Philippe Lasek

Philippe Lasek

Security Officer, Decathlon
Security Officer since 2018, first in IAM & People Business Unit and now for the Conception Business Unit.
Previously : Google Admin, Engineering Manager.
Deployment of DMARC and BIMI on our main domain mail.


avatar for Karl Mongosso

Karl Mongosso

Senior Machine Learning Engineer, Decathlon
Tuesday May 26, 2026 16:15 - 16:45 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

16:15 CEST

DECATHLON X ADEO - Using OpenTelemetry to drive SRE efficiency
Tuesday May 26, 2026 16:15 - 16:45 CEST
Opentelemetry has recently skyrocket to become a new standard in telemetry collection. Both Decathlon and Adeo have started incorporating it into their observability stack with different approaches. In this talk we will cover the following points :

- What is Opentelemetry ?
- A comparison between the approaches used by adeo and decathlon
- The opportunities of opentelemetry (perspectives from decathlon and adeo)
- Key results from both companies
Speakers
avatar for Pavel Chalyk

Pavel Chalyk

Tech Lead, ADEO Services

avatar for Quentin Delignon

Quentin Delignon

Lead Software Engineer, ADEO Services
Quentin Deligon (Adeo Services)
Lead Software Engineer in Observability team in Adeo. Innersource and OpenSource enthusiast.
avatar for Sylvain Germe

Sylvain Germe

Decathlon
Expertise in Observability, APM and Load testing since 10 years.
Developer and OpenTelemetry contributor
CPE Product Manager for Observability Tools
Tuesday May 26, 2026 16:15 - 16:45 CEST
4 - MEDIUM STAGE

17:00 CEST

Pricing decisions: From dashboards to a production-grade AI assistant
Tuesday May 26, 2026 17:00 - 17:45 CEST
At Decathlon, our Pricing Decision Makers were suffering from *infobesity*. We solved that by changing their UI from 12 complex Tableau dashboards into a **frictionless, natural-language AI assistant** integrated directly into Google Chat.

But taking a **Generative AI agent** from a **shiny POC** to a highly accurate robust **production** product is paved with technical hurdles.
In this talk, we will **open the hood** and share our engineering learnings.

LLMOps, monitoring, evaluation, costs ... Join us to discover what it actually takes to build and **run GenAI at scale**!
Speakers
avatar for Nicolas Gorrity

Nicolas Gorrity

Decathlon
Nicolas GORRITY - Senior ML Engineer

- 3 ans d'expérience en Data Science dans l'automobile puis dans le Retail.
- 3 ans d'expérience en ML Engineering dans le Retail, dont 2 ans chez Decathlon Digital.
Tuesday May 26, 2026 17:00 - 17:45 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

17:15 CEST

AI-based virtual coaching for sales advisors to master product knowledge
Tuesday May 26, 2026 17:15 - 17:45 CEST
In an era where product complexity is rising and customer expectations are higher than ever, traditional training often falls short of the "real-world" pressure of the sales floor. Explore how AI Virtual coaching is bridging the gap between technical product knowledge and expert consultation.

This talk introduces an innovative Customer AI-Simulator for sales advisors co-built with sellers experts from LMIT and learning teams, and approved by UX. By leveraging Speech-to-Text and AI Dialogue, we have created a safe, interactive environment where sales advisors can practice complex scenarios, such as the technical "Shower Enclosure" family, with virtual customers to master their knowledge and be able to traslate produt characteristics in benefits for the customer.

Longer description:
The Problem that solution solves
- New advisors struggle to internalize the Leroy Merlin sales model.
- Senior advisors know the specs, but often struggle to translate them into customer benefits.
- Classroom training is disconnected from the daily reality of the store floor.

The Solution: The AI Virtual Coach MVP
- We’ve built a Customer AI-Simulator. This isn't just a chatbot; it’s a high-fidelity 'flight simulator' for retail. - a verbatim from a seller that co-designed this coach.
- Real-time Interaction: Using Speech-to-Text and AI Dialogue, advisors engage in a natural verbal flow with a virtual customer.
- Realistic Scenarios: From "budget-conscious" to "aesthetic-oriented," the AI mimics real human behaviors and objections.
- Immediate Feedback Loop: After the 'sale,' the AI provides an instant debrief based on LMIT standards—identifying strengths, missed opportunities, and discovery depth.

Why it’s a Game Changer (The Value)
- Risk-Free Practice: Advisors can fail, learn, and iterate in a safe environment.
- Standardization: Aligns every store to the same high-quality LM selling model (M2, M3, M4).
- Data-Driven Growth: We finally have visibility into how our teams sell, not just what they know.
Speakers
avatar for Albina Muzyka

Albina Muzyka

Business Domain leader New ways of working, ADEO Services
Albina Muzyka is a leader in Digital HR and Employee Experience Transformation at Adeo Services, with 15 years of international experience across the ADEO ecosystem. Having spent nearly a decade in HR at Leroy Merlin Ukraine before moving into global digital transformation, Albina... Read More →
Tuesday May 26, 2026 17:15 - 17:45 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

17:45 CEST

From User Needs and Behavior to Data Modeling: Reducing FinOps Costs with Smarter Modeling
Tuesday May 26, 2026 17:45 - 18:15 CEST
Data models are often designed around data availability and development convenience, but not always around how users actually consume data. As analytical products scale, this misalignment can significantly increase infrastructure costs.
In this talk, I will share the transformation of the Seller Deep Dive Dashboard, which at one point became one of the most expensive dashboards to operate due to its data model design.
The initial architecture relied on a fully denormalized table, where dimensions were merged directly into the fact table powering the dashboard. While this simplified early development, the model became increasingly inefficient as data volume grew and slowly changing dimensions expanded the dataset.
By analyzing which KPIs users actually queried and how frequently they were used, we redesigned the model around a usage-driven star schema.
The new architecture separates metrics into two fact tables:


A core fact table containing roughly 80% of the most frequently used KPIs, representing only 20% of the total data weight


A secondary fact table containing the remaining less frequently used but heavier metrics, queried only when required


This change dramatically reduced the amount of data scanned by the majority of queries.
As a result, the dashboard evolved from being one of the most expensive dashboards to run, costing roughly €3500 over two weeks, to becoming one of the most efficient, reducing costs to approximately €350 over the same period—a 90% reduction in FinOps costs while maintaining full analytical capability.
Speakers
avatar for Juan Jose Medina Martinez

Juan Jose Medina Martinez

Data Analyst, ADEO Services
Juan José Medina - Data Analysts - Adeo Marketplace
Tuesday May 26, 2026 17:45 - 18:15 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France
 
Wednesday, May 27
 

09:00 CEST

Software supply chain attack: Overview of current cybersecurity threats
Wednesday May 27, 2026 09:00 - 09:30 CEST
As software ecosystems grow more complex, Software Supply Chain attacks are evolving from manual exploits to AI-driven automation. This session explores the rising trend of attackers compromising packages and extensions to bypass traditional corporate defenses. We will deep-dive into:
- Corporate Risks: Understanding the impact of automated dependency poisoning.
- Case Study: A concrete analysis of Shai-Hulud 2.0 and how AI scales these threats.
- Strategic Vision: Our roadmap to harden our development lifecycle and prevent such scenarios from impacting our infrastructure.
Speakers
avatar for Quentin Torres

Quentin Torres

Cybersecurity Architect, Leroy Merlin France
Cybersecurity Architect for Leroy Merlin France (3 years), currently leading security for the Kbane and Leroy Merlin Rénovation BUs. I also oversee the Information Protection strategy for the entire French Region within Adeo Services, bridging technical architecture with strategic... Read More →
avatar for Sébastien Baillet

Sébastien Baillet

Security expert, Ext - ADEO Services
CTO & Cybersecurity expert at LUPISE
Wednesday May 27, 2026 09:00 - 09:30 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

09:00 CEST

The 50 GB revelation: How a simple statistic redefined how we see data at Decathlon
Wednesday May 27, 2026 09:00 - 09:45 CEST
For years, the industry's motto has been simple: collect and store as much data as possible, believing that immense value will emerge from this accumulation. This vision, driven by tech giants like **GAFAM** that collect petabytes of data daily, isn't always practical for every company. At the same time, single computing instances on the cloud have become exponentially more powerful, allowing us to handle large amounts of data on a single machine.

This new way of thinking is captured by the **Small Data Manifesto**, which states that more data doesn't always equal better results, modern hardware is often underused, and data topics should be developed locally first. In the data department of Decathlon, we discovered this is more than just a theory. More than 90% of the data tables in our datalake (Decathlon's centralized data repository) was less than 50 GiB. This finding inspired us to define a new approach to data transformation.

After setting the context and introducing the Small Data Manifesto, we will present **Light Computing**, which brings these principles to life. Instead of spinning up expensive clusters to transform data, we use powerful single-node tools and only scale up when the data truly requires it. The leading tools of this field are **Polars** and **DuckDB**. We'll cover two main aspects: what technically defines these tools and what they bring in terms of concrete cost and architectural benefits.

The session will conclude with a live demonstration of Polars, showing how we can easily compute 50 GB of data on a small computing instance on Databricks.
Speakers
avatar for Arnaud Vennin

Arnaud Vennin

Data Engineer, Decathlon
Raised on the eastern plateaus of Rouen in the northwest of France, I studied primarily in my hometown, where I completed my undergraduate degree in Environmental Sciences. I spent one semester abroad in Nijmegen, a city in the Netherlands. Afterward, I obtained a master's degree... Read More →
Wednesday May 27, 2026 09:00 - 09:45 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

09:45 CEST

From search bar to shopping list: How LLM turns DIY intent into guided commerce
Wednesday May 27, 2026 09:45 - 10:15 CEST
RAGEdito was born from a simple observation: when a customer types "how to change a window" into the Leroy Merlin France search bar, they are not looking for a product — they are planning a project. Currently live in production on French traffic, RAGEdito generates real-time DIY tutorials with contextualised shopping lists, directly from the search bar.

This session delivers a hands-on retrospective from a three-person Product Owner / Data Analyst / Data Scientist team on building, steering, and continuously improving a RAG system in real production conditions.

Product angle: how to translate a user signal into a structured product vision — from defining meaningful business KPIs to aligning stakeholders across a multi-product Search & Publication domain. How RAGEdito fits into a coherent, scalable roadmap with group-wide deployment ambitions.

Analytical angle: how production query analysis identified a significant share of editorially-intentioned traffic going unaddressed, segmented customer needs by intent type (repair, installation, construction, inspiration), and converted these insights into concrete growth levers and roadmap decisions.

Technical angle: how user feedback feeds a custom evaluation pipeline, refines LLM generation, and drives architectural evolution toward a reusable API component scalable across the group.

Key takeaway: how to align product vision, analytical intelligence, and technical robustness to turn a RAG prototype into a product with measurable business impact.
Speakers
avatar for Zi Wang

Zi Wang

Adeo Services
Software Engineer turned Data Scientist, banking -> fmcg -> retail. 
avatar for Svetlana Vasiukova

Svetlana Vasiukova

Product Manager, ADEO Services

avatar for Ekaterina Rezanovich

Ekaterina Rezanovich

Data Analyst, ADEO Services
Data Analyst. 8 years of experience in data analysis, ad-hoc analytics, and AI/LLM use cases. At Adeo Group since 2021.
Wednesday May 27, 2026 09:45 - 10:15 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

09:45 CEST

Software ate the world, is AI eating software?
Wednesday May 27, 2026 09:45 - 10:15 CEST
In 2011, Marc Andreessen famously declared: *"Software is eating the world"*. Today, with the massive adoption of Generative AI, a new existential question is echoing through the tech industry: is AI eating software... and our jobs along with it?

Fueled by mind-blowing code generation demos, the myth of the disappearing Software Engineer is stubbornly persistent. Yet, the reality on the ground is far more nuanced. While AI excels at generating simple solutions or writing code in languages heavily represented in open-source repositories (like Python or JavaScript), its limitations become glaringly obvious when faced with complex algorithms or languages with limited training data.

In this talk, as Directors of Engineering, we will look past the hype to analyze what the future truly holds for our industry. We will tackle the real challenges awaiting our development teams, which are far removed from simply being replaced by machines.

**Key Takeaways:**

* **The Myth of the Obsolete Engineer:** Why the end of software engineering is an illusion, and where the real limits of AI lie (algorithmic complexity, lack of training data for specific or proprietary tech).
* **The Vendor Lock-in Trap:** How reliance on large AI models is redrawing the landscape of technological lock-in for our architectures.
* **The New Skill Matrix:** How to rethink the career path from Junior to Senior in an era where AI handles writing the "easy" code.
* **The Impact on the Broader Ecosystem:** Engineering doesn't operate in a vacuum. How does the AI era redefine the roles and interactions of QA, Support, Product Management, and Ops?

Whether you are a Software Engineer seeking direction for your career, an Engineering Manager preparing your team for the future, or a stakeholder in the tech ecosystem, join us to map out the true challenges of this new era. Code isn't dead, but the way we build it has changed forever.
Speakers
avatar for Serguei Smirnov

Serguei Smirnov

Director of Engineering, Decathlon
I am Serguei Smirnov, currently Director of Engineering HR & Finance at Decathlon Digital. I started my career 20 years ago hands-on in the code as a developer, before spending nearly 16 years at ADEO Group. There, I had the opportunity to lead major international transformation projects... Read More →
avatar for Marco Mornati

Marco Mornati

Director of Engineering, Decathlon
**Marco Mornati** *Director of Engineering, Decathlon Digital* Marco Mornati is the Director of Engineering at Decathlon Digital, where he leads teams in building global omnichannel retail experiences. With over 20 years of experience spanning DevOps, scalable cloud architecture... Read More →
Wednesday May 27, 2026 09:45 - 10:15 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

10:15 CEST

KONG - Context is king: Why is context the key to unlocking the true value of agentic AI?
Wednesday May 27, 2026 10:15 - 11:00 CEST
Overview

As AI models converge on strong reasoning capabilities, the differentiator for effective
agentic systems is increasingly not the model itself, it's the context you provide it.
Context engineering — the discipline of delivering the right information, at the right
granularity, at the right time — is becoming a core competency for teams building agents
that work reliably in production. In this talk, we define the problem, share practical
principles for context architecture, and walk through how we've approached it with our
own products.

Outline
I. The Context Problem
- As agents take on longer, multi-step tasks with real-world consequences,
the quality of their context becomes the primary driver of output quality

- Most agent failures in practice aren't reasoning failures — they're context
failures: the model was missing information, working with outdated
information, or overwhelmed by irrelevant information

- Context engineering as a discipline: distinct from prompt engineering,
closer to systems design. It's about pipelines, infrastructure, and
information architecture — not just what goes in the system prompt.

II. What Good Context Looks Like
- Relevance is the measure that matters – The goal of context engineering
isn't to maximize information available to the model — it's to maximize
relevance. Everything else follows from this.

- You can't always predict relevance in advance – Agentic workflows are
dynamic. What's relevant at step five depends on what the agent discovered
at step three. Pre-curated context assumes you know the path before the
agent walks it.

- Explorability is how you achieve relevance at scale – Rather than
pre-identifying the right context, the more resilient approach is making your
knowledge base easy for the agent to traverse and explore on the fly. The
design question shifts from "build a better retriever" to "make your
knowledge navigable."

- This is where most teams are under-investing – The default
embed-index-retrieve pattern optimizes for static similarity. It doesn't
support an agent that needs to follow threads across systems, discover
adjacent context, or refine its understanding as a task unfolds.

- Measure whether agents are finding what they need – Without this, you
can't tell whether a bad output is a reasoning problem or a context problem.

III. Turning Enterprise Knowledge into Agent-Ready Context

- Enterprise environments are where context engineering is both most
difficult and most impactful — the knowledge exists but it's scattered,
siloed, inconsistently structured, and constantly changing

- The untapped goldmine: docs, wikis, tickets, CRMs, codebases, Slack
threads — most enterprise knowledge is already there, just not accessible
to agents

- Strategies for ingesting, indexing, and surfacing enterprise knowledge at
inference time

- Handling permissions, access control, and data sensitivity in context
pipelines

- How we achieve this with Kong Context Mesh: a walkthrough of our
approach to transforming enterprise resources into agent-ready context

1/ Our architecture for ingesting, indexing, scoping, and serving
enterprise context at inference time

2/ Assumptions we made early on that turned out to be wrong, and
what we learned

3/ What measurably improved when we got context right, and where
we're still iterating

Speaker Bio

Christopher Tam is the Product GM for Kong’s Agentic AI Infrastructure offerings,
including AI Gateway, Context Mesh, and KAi. A veteran in the AI and infrastructure space,
Chris previously founded Substrates.ai, an agentic infrastructure startup, and held
product leadership roles at Google and Verily, where he applied cutting-edge AI
technologies to business applications. He was also a VP at Leap Motion, an early pioneer
in computer vision.
Speakers
avatar for Christopher Tam

Christopher Tam

Kong
Christopher Tam is the Product GM for Kong’s Agentic AI Infrastructure offerings,
including AI Gateway, Context Mesh, and KAi. A veteran in the AI and infrastructure space,
Chris previously founded Substrates.ai, an agentic infrastructure startup, and held
product leadership ro... Read More →
Wednesday May 27, 2026 10:15 - 11:00 CEST
1 - MAIN STAGE

10:30 CEST

Smarter last-mile logistics: using operations research to optimize delivery districts and booking calendars in the Italian context
Wednesday May 27, 2026 10:30 - 11:00 CEST
Last-mile delivery operations face increasing pressure to balance service quality with cost efficiency, given highly variable demand densities and heterogeneous territories. We present an optimization framework that jointly designs territorial delivery districts and customer booking calendars, treating delivery slot availability as decision variables. In remote or low-demand areas, the system restricts booking availability to a limited number of weekly delivery slots, enabling order consolidation and reducing inefficient travel. Conversely, high-demand districts are offered a larger set of booking slots, supporting more frequent delivery routes. **By shaping demand in time, the system aligns customer delivery choices with operationally efficient routing patterns**. The underlying mathematical formulation is based on a Mixed-Integer Linear Programming (MILP) model that optimizes booking calendar configurations while minimizing fleet size and traveled kilometers under company-specific operational constraints.
Deployed by Golilla, the Italian last-mile logistics operator within the Adeo ecosystem, the tool was tested over six months at a regional hub in Emilia-Romagna, replacing the previous experience-based scheduling approach. The result was a 15% increase in gross margin. It is now live in production and being rolled out across the full Italian territory.
Speakers
avatar for Dario Piloni

Dario Piloni

Data Scientist, Tecnomat Italy
Data scientist in Tecnomat Italy since 2023, formerly a scientific researcher in the field of Operations Research, Mathematical Optimization and Machine Learning.
avatar for Nicholas Mattia Marazzi

Nicholas Mattia Marazzi

Lead data scientist, Tecnomat Italy
Nicholas Marazzi, lead data scientist, in Tecnomat since 2022, formerly a scientific researcher and data science consultant.
Wednesday May 27, 2026 10:30 - 11:00 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

10:30 CEST

CUJ as a KPI: How critical user journeys united tech and business driving products strategies
Wednesday May 27, 2026 10:30 - 11:00 CEST
This session details the transformation journey of Leroy Merlin Brazil (LMBR) as it adopts **Critical User Journeys (CUJ)** as the foundation for operational excellence. We will share how we unified technology and business teams to map the critical journeys of **Marketplace, Credit Platform, Payment, and Arc+ Loyalty**, establishing clear indicators and defined consequences for each stage.

We will present the practical process of identifying these journeys, which was essential for pinpointing critical areas and primary personas, resulting in a drastic reduction in errors and unavailability. Furthermore, we will discuss the current expansion to eight additional teams including **E-commerce, Assisted Sales, and Flash-Sales** where journeys are already in the draft phase. The main goal is to demonstrate how CUJs evolved from a technical concept into a **strategic performance KPI**, set to replace APDEX to better align with market practices and ADEO’s global digital maturity goals.

### Why choose our talk? 😄

This talk presents a success case of digital maturity from a BU outside the European Union, serving as an incentive for global collaboration. It demonstrates how synergy between technical and business communities can generate tangible results in resilience and efficiency. By elevating *Critical User Journeys* to a global KPI, LMBR is not just solving infrastructure issues but leading a cultural shift that prioritizes the "persona experience" over synthetic metrics like APDEX. This content is highly relevant for both *Dev-Tech* and *Product Management-UX* streams, offering a replicable framework for other ADEO and Decathlon units seeking customer-centric innovation and positive impact.
Speakers
avatar for Luiz Paulo Schlischting

Luiz Paulo Schlischting

Leroy Merlin Brazil
SRE Specialist at Leroy Merlin Brazil with some years of experience in the technology industry. Leading strategic multicloud migration and resilience initiatives, having implemented Critical User Journeys (CUJ) as a core performance KPI. A Data Engineering Specialist with a postgraduate... Read More →
avatar for Renan Goncalves De Torres

Renan Goncalves De Torres

Leroy Merlin Brazil
FinOps, Operations, Governance and Infrastructure specialist, graduated in Computer Networks and MBA in Project management.
Operations Manager at LMBR, responsible for SAP Infrastructure (Basis and SAP RISE contract management), Cloud, FinOps, Database, Backup, Servers (MS and Li... Read More →
Wednesday May 27, 2026 10:30 - 11:00 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France

10:30 CEST

Industrializing forecasting solutions: A modern architecture
Wednesday May 27, 2026 10:30 - 11:15 CEST
At Decathlon, based on years of experience, we’ve completely revamped how we do forecasting by building a "forecasting pipeline factory." Thanks to this approach, we are now building and shipping pipelines in producion in less than two months. Our solutions are based on modern data manipulation tools (dbt), in-house python libraries for machine learning abstractions, and modern models such as Time Series Foundation Models (Chronos2).

This technical stack, combined with an “extreme programming” mindset, has greatly accelerated our developments and deployment velocity. It’s been a real cross-functional enabler to deliver actual business value across several units at Decathlon.
Speakers
avatar for Raphaël Nedellec

Raphaël Nedellec

Staff Data, Decathlon

Staff Data at Decathlon, InStore domain.
avatar for Vianney Bruned

Vianney Bruned

Decathlon
Vianney Bruned is a staff Data Scientist at Decathlon in the Value Chain domain.
avatar for Anthony Vromant

Anthony Vromant

Decathlon
Anthony Vromant is an ML Engineer in the Decathlon Value Chain domain.
Wednesday May 27, 2026 10:30 - 11:15 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

11:00 CEST

A quarter of Spec driven development: 5 lessons I learned as a Product Manager
Wednesday May 27, 2026 11:00 - 11:45 CEST
# A quarter of Spec Driven Development: 5 lessons I learned as a PM.

> "What if the incessant back and forth between product and tech wasn't a fatality, but a symptom of an outdated work method? At a time when AI can generate code in seconds, the bottleneck has shifted: it's no longer in execution, but in the precision of intention."

## Core idea
After a quarter of experimenting with Spec Driven Development (SDD), I'm offering you an unfiltered feedback. How to transform a product vision into a robust specification so that it becomes a vector for acceleration? With SDD, the product manager role takes on a very important part, particularly in the upstream phase of discovery and design. During this period, between vibecoding, SDD, and the use of different frameworks, I was able to learn 5 lessons that seem essential for a PM.

Through this talk, I want to show you how upstream technical and functional specification is not a return to waterfall execution but an accelerator of agility thanks to SDD. We will talk about tools, methods, change management, successes, but also failures (because there can be some).

---

## Key message
AI does not replace the PM, but forces them to become an expert in design again! With this new mindset, we talk about the role of the product builder who not only defines the product strategy but also builds, prototypes, and iterates directly using AI and no-code/low-code tools.

---

## Central questions
How does the product manager integrate team dynamics when they can experiment and build?
How can we ensure that SDD and this role transformation are not blocked by shadow IT and organizational tech radars?
What are the roles of SIGs and Offices within digital domains to accelerate SDD at scale?

---

## Talk promise
At the end of the talk, participants will leave with:

- **A mindset shift:** why "thinking" and "building" are no longer distinct phases in the AI era but a single, unified block.
- **Vibecoding and SDD:** two complementary approaches: vibecoding prioritizes speed and exploration, while SDD prioritizes precision and traceability.
- **The product builder's "TechRadar":** A list of tools (no-code, low-code, AI agents) to accelerate your discovery cycles.
- **The augmented PM's to-do list:** A roadmap to transition from the data-centric PM 2.0 to the AI-augmented Product Builder PM 3.0.

---

## Target audience
Product managers, designers, and engineers curious about the future of product creation in an AI-first world.

---
Speakers
avatar for Ahmed Kaci

Ahmed Kaci

Digital Product Manager, Decathlon
# Ahmed KACI
## Decathlon
### Digital Product Manager

Product Manager with 7 years of experience in designing, developing, and launching digital products. Throughout my career, I’ve helped transform digital solutions into true growth levers by working at the intersection of design, technology, and product strategy. I’ve worked across... Read More →
Wednesday May 27, 2026 11:00 - 11:45 CEST
4 - MEDIUM STAGE

11:15 CEST

How to establish an agentic framework: Sovereignty and simplicity with "Small Agent"
Wednesday May 27, 2026 11:15 - 11:45 CEST
We are hearing a lot about agentic AI right now. Every developer is testing it, looking to implement it, and some are even pushing it to production. However, the ecosystem is still highly uncertain; the surrounding technologies (ADK, LangGraph, CrewAI, etc.) are very young. Ultimately, picking one right now feels more like a gamble than an informed choice.

**So, what solution would allow us to both set a clear framework and ensure agentic sovereignty? Small Agent!**

Within the LMFR AI team, we have built a framework that empowers any developer to implement agents in just three lines of code. All the underlying complexity is managed by the framework itself. Thanks to A2A, we standardize the interfaces so that, in the end, whether you choose LangGraph, ADK, or another tool behind the scenes, it simply doesn't matter.

It features two operating modes:
* Low-Code: If you want minimal code to run a V0 agent, let the framework do the heavy lifting.
* Advanced: If you are experienced in orchestration, you have full control. For example, if you use LangGraph, you can manage the graph directly. Everything is defined as classes, leaving you completely free to use code overrides as your imagination dictates.

This framework will enable us to:
* Accelerate everyone's daily workflow.
* Centralize complexity within the AI team, allowing every developer to implement easily.
* Achieve true technological sovereignty.
* Guarantee agentic consistency across the company.

**Additional Notes / Context:**

And yes, this really exists! We are already starting to implement it in specific areas. We also have our sights set on deploying an operational agent directly onto Turbine, using the A2A protocol to standardize communications with the agents.
Speakers
avatar for Axel Tison

Axel Tison

Data Scientist, Leroy Merlin France
DS @LMFR
avatar for Cyril Spanneut

Cyril Spanneut

Lead AI, Leroy Merlin France
Hi ! I'm Cyril, 
Wednesday May 27, 2026 11:15 - 11:45 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

11:15 CEST

Detecting malicious pull requests at scale with LLMs
Wednesday May 27, 2026 11:15 - 11:45 CEST
As AI coding assistants accelerate software development, the volume of pull requests at Datadog has grown to nearly 10,000 per week, increasing the risk that malicious changes slip through due to review fatigue. To address this, Datadog built BewAIre, an LLM-powered code review system designed to identify malicious source code changes introduced by threat actors. By reducing approval fatigue for developers while increasing friction for attackers, BewAIre guides human reviewers to the areas where judgment matters most, without slowing developer velocity.

In this presentation, I will share why BewAIre was built, how it evolved from a hackathon experiment into a production-grade internal system, and the key architectural decisions and trade-offs involved along the way. I will discuss what worked, what didn’t, and the limitations we encountered when applying LLMs to security-critical workflows.
Speakers
avatar for Julien Doutre

Julien Doutre

DATADOG
Software engineer at Datadog, focusing on securing the Software Development Lifecycle thanks to container images signing and supply chain attacks detection with AI.
Wednesday May 27, 2026 11:15 - 11:45 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

11:15 CEST

LINKUP - Designing a retrieval layer for AI agents: Lessons from production
Wednesday May 27, 2026 11:15 - 12:00 CEST
Most AI systems today rely on Retrieval-Augmented Generation (RAG) or APIs to access external knowledge. While
effective in controlled environments, these approaches often fail in production when faced with real-world data: incomplete
coverage, stale information, and unreliable sources.
In this talk, we share practical lessons from building a web-scale retrieval layer designed specifically for AI agents. We’ll
explore the key challenges of working with web data, dynamic content, inconsistent structures, adversarial noise, and the
architectural decisions required to handle them.

Topics include retrieval strategies (search vs direct fetch), ranking signals (relevance vs trust), structuring unstructured data,
and the trade-offs between latency, precision, and coverage.
Through real-world failure cases and design patterns, attendees will gain a clearer understanding of how to build AI systems
that remain grounded, reliable, and useful beyond demos.
Speakers
avatar for Boris Toledano

Boris Toledano

COO, Linkup
Boris Toledano is the Co-founder and Chief Operating Officer of Linkup, a cutting-edge AI technology company dedicated to bridging the gap between Large Language Models and the real-time web.
Wednesday May 27, 2026 11:15 - 12:00 CEST
2 - GRAND PAVILION

11:30 CEST

Modularity by Design: The Enterprise Architect’s Playbook
Wednesday May 27, 2026 11:30 - 12:15 CEST
Comment transformer nos processus tout en remplaçant un SI historique ? L'Architecture d'Entreprise (EA) est souvent le chaînon manquant pour concilier vision globale et agilité locale.
Je vous propose de découvrir comment l'EA agit comme un catalyseur de modularité. Nous aborderons :
- La clarification des responsabilités : comment l'EA soutient les DL et les Product Managers
- Les critères de décision : comment garantir que nos choix d'aujourd'hui ne deviennent pas les blocages de demain.
- La trajectoire de transformation : passer d'une architecture subie à une modularité choisie.
Speakers
avatar for Cecile Coulle

Cecile Coulle

Lead Enterprise Architect, ADEO Services
Collaboratrice engagée chez ADEO depuis près de 20 ans, j'ai bâti mon parcours sur une conviction : la conception doit être le pont entre la performance opérationnelle et la vision stratégique. Forte d'une solide expérience en gestion de produits et d'équipe et d'un vernis... Read More →
Wednesday May 27, 2026 11:30 - 12:15 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

12:00 CEST

From crawled pages to strategic insights: AI-powered Competitive Insights at scale
Wednesday May 27, 2026 12:00 - 12:30 CEST
How do you know if your product assortment is complete, well-structured, and competitively relevant — across **millions of products**, updated weekly, without a team of analysts manually browsing competitor websites?

At Leroy Merlin (ADEO), we faced exactly this challenge. Category managers needed actionable competitive intelligence: a structured view of **assortment coverage** — which product types competitors offer, which attributes they highlight, and where gaps exist. That means extracting structured product attributes — dimensions, materials, capacities, product types — from raw competitor product pages and mapping them onto our own product taxonomy.

We built a fully automated, AI-powered pipeline running on Google Cloud (Vertex AI + BigQuery) that today monitors **31 retailers and marketplaces** — including ManoMano, Castorama, Amazon, CDiscount, Ikea, Bricorama, and even the Leroy Merlin marketplace itself — processing over **26 million products** weekly.

The system combines two complementary AI approaches:
- A **custom ML classification model** — the **PEM (Product Entity Matching) API**, an existing ADEO digital asset reused here for a new purpose — that assigns each competitor product to one of **2,873 product models** within ADEO's internal taxonomy. It successfully classifies **62.7% of all ingested products**, with confidence-score thresholding ensuring downstream data quality.
- **Gemini 2.0 Flash** for structured characteristic extraction from raw product text, using few-shot prompting, self-verification loops, and type-aware validation (closed value sets, numeric measurements with automatic unit conversion). This has produced over **39 million characteristic values** across **80 distinct attributes** on **11.5 million products**.

The results feed a **dbt aggregation pipeline** in BigQuery, stream to a **Vue.js frontend**, and give category managers a live, filterable view of how Leroy Merlin's catalog compares to the market — by product type, characteristic, and price quartile.

In this Tools in Action session, we'll walk through the full pipeline architecture, the AI design choices and their trade-offs (LLM output validation, reuse of internal ML assets, quality filtering), and close with a live demo of the app.
Speakers
avatar for Guillaume Caron

Guillaume Caron

Data Scientist, Leroy Merlin France
avatar for Julien Momal

Julien Momal

Product Manager, Leroy Merlin France
### Julien Momal — Product Manager, Leroy Merlin France

Julien has been a Product Manager at Leroy Merlin for over 4.5 years. As Leroy Merlin France Domain Lead for Offer & Purchasing topics, he bridges the gap between business impacts and innovative product delivery.
Wednesday May 27, 2026 12:00 - 12:30 CEST
4 - MEDIUM STAGE

12:00 CEST

Make your data pipelines more reliable: Alerting and automated calculation of SLIs through meaningful quality metrics
Wednesday May 27, 2026 12:00 - 12:30 CEST
For the dataplatform teams, building high-performance pipelines is only a part of the equation: the real challenge is ensuring that this data is accurate, up to date and usable by business units and AI models on a daily basis. Data quality has thus become the true battle of trust between technical teams and end users.

However, ensuring this quality across an entire organisation is complex, therefore defining and enforcing global data quality rules across an entire company rarely works: only local teams understand the reality and specific nature of their data. Yet, allowing each team to manage its indicators in silos creates chaos in communication, forcing Product Managers (PMs) in particular to manually cobble together their Service Level Indicator (SLI) calculations and user alerts. An unsustainable situation, especially since data of impeccable quality is now an essential prerequisite for deploying artificial intelligence on a large scale.

In this talk, we will present our experience in creating a standardised data model. We will also see why quality measurement must remain the responsibility of the local product team, while standardising its reporting via a ‘Plug & Play’ architecture. We will the explain how to design this layer independently of the underlying technical solution in order to use these unified metrics to generate reliable SLIs. Finally, we will discuss the prospects offered by this formalism, which paves the way for more complex use cases such as feeding a cross-functional Data Cockpit or evaluating real Data Contracts.

The goal isn't to dictate a tool, but to create a universal standard of communication. We will detail this agnostic architecture that acts as the single source of truth for your pipelines. No more mental load for Product Managers: this overlay automatically transforms every test suite into business SLIs and proactive alerts, making your data reliability 100% autonomous.
Speakers
avatar for Thomas Fenot

Thomas Fenot

Decathlon
As a Data Engineer at Decathlon for 4 years, Thomas builds and scales data products within the Data Platform Business Unit. Operating in the "Core Data Product Planet and Industry" team, his primary focus is delivering the complex data models required to calculate product carbon footprints... Read More →
Wednesday May 27, 2026 12:00 - 12:30 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

Define once, run anywhere: portable SQL pipelines for modern data platforms
Wednesday May 27, 2026 14:00 - 14:30 CEST
SQL remains the most widely used language in data engineering.

Yet modern data platforms are increasingly fragmented: warehouses, query engines, lakehouses, streaming systems and AI pipelines often require different tools, different execution environments and different ways to define transformations.

What if SQL pipelines could be **portable across engines**, while also providing built-in guarantees for data quality and testing?

In this talk, I will introduce **RivetSQL**, an experimental project exploring a new approach to **declarative SQL pipelines with multi-engine execution**.

The goal is simple:

> Define your pipeline once, run it anywhere.

RivetSQL allows developers to describe data pipelines declaratively while enabling:

- execution across different SQL engines
- built-in data quality checks
- integrated testing of transformations
- reproducible and portable pipelines

In this session, we will explore:

- why SQL pipelines remain difficult to make portable
- how modern data stacks introduce new execution challenges
- the architecture behind RivetSQL’s multi-engine execution model
- how testing and data quality can be integrated directly into pipeline definitions
- lessons learned from building an early-stage language experiment

Finally, we will discuss how these ideas could impact **future data platforms and AI pipelines**, where portability, reproducibility and data quality become critical.

This talk is aimed at engineers building data platforms, analytics systems or AI pipelines who want to rethink how SQL pipelines should work in modern infrastructures.
Speakers
avatar for Massil Chabane

Massil Chabane

Decathlon
Staff Data Engineer at Decathlon, I have been working on data platforms and data engineering for the past 6 years, after starting my journey in tech more than 10 years ago.

At Decathlon, I contributed to building parts of the company’s data platform, including initiating the automated data ingestion tooling that powers Decathlon’s data catalog. I later led the data architecture team, helping shape how data platforms evolve at scale in a large retail... Read More →
Wednesday May 27, 2026 14:00 - 14:30 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

Beyond the hype: The "Day 2" guide to vector search in production
Wednesday May 27, 2026 14:00 - 14:30 CEST
Vector Search has quickly moved from a niche ML requirement to a core capability for modern applications. But while "Hello World" tutorials make it look easy, the reality of managing high-dimensional data at scale is a different story. What happens when you change your embedding model? How do you handle the cost of indexing millions of vectors? How do you avoid the "black box" performance trap?

In this session, we move past the AI hype to look at the practical realities of implementing Vector Search. Drawing from real-world experiments to production, we will compare how major players like MongoDB, Elasticsearch, and OpenSearch handle vector workloads differently.


**Attendees will walk away with:**

* **A "Go/No-Go" Framework:** When to use Vector Search vs. when traditional keyword search is actually superior.
* **Managing the Lifecycle:** Strategies for handling breaking changes in embeddings and re-indexing strategies that won’t crash your production environment.
* **Optimization Tactics:** Practical ways to reduce vector dimensionality and latency without sacrificing retrieval quality.
* **The Cost-Benefit Matrix:** A direct comparison of performance vs. infrastructure overhead across different database providers.

Whether you are a Software Developer that is working for RAG / Search / Recommendation systems or an ML Engineer, this talk provides the "missing manual" for building search systems that are as maintainable as they are "intelligent."
Speakers
avatar for Guilherme De Freitas Guitte

Guilherme De Freitas Guitte

Staff Engineer - Recommendations, ADEO Services
Staff Engineer at ADEO (Leroy Merlin, Bricoman), technical leader in recommendation systems. With 15 years of experience in developing publication systems for e-commerce platforms, he now drives and builds the technical vision / strategy of an omnichannel, multi-country recommendation... Read More →
avatar for Jesse Peixoto

Jesse Peixoto

Back-End Developer, ADEO Services

Wednesday May 27, 2026 14:00 - 14:30 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

DAN SAFFER - Panel: Product Design Careers and Skills in an AI-Driven World
Wednesday May 27, 2026 14:00 - 14:45 CEST
Continuing the conversation from Dan Saffer’s conference, this live roundtable brings together Dan Saffer, Simon Leclercq, and Paul Thanasack to tackle the shifting landscape of product design. With new challenges emerging from AI and rapid development tools, we will discuss how to protect and elevate the credibility of our profession. Topics include the evolution of career paths, essential skill development based on field feedback, and how current design education are adapting to technological shifts. An open Q&A session will follow, so feel free to prepare your questions.
Speakers
avatar for Simon Leclerc

Simon Leclerc

Decathlon

avatar for Paul Thanasack

Paul Thanasack

Head of UX - AI & new technologies, ADEO Services
Hippolyte Beseme - Martin Molcrette - Miguel (Décathlon)
Wednesday May 27, 2026 14:00 - 14:45 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

ADS2 towards AI-Native: Our ongoing journey to make the Design System a pivot tool
Wednesday May 27, 2026 14:00 - 15:30 CEST
AI agents are making their way into designers' and developers' workflows. Standards are shifting fast, and best practices are still being written. That's exactly why we chose to move rather than wait.
This session shares our ongoing thinking around ADS2: how to position a design system as an AI-ready resource, so it remains a reliable anchor in these new ways of working. Without that foundation, vibe coding and vibe design tools — as powerful as they are — generate inconsistency at scale and build up technical and visual debt that's hard to recover from.
We'll walk through what we've built so far: documentation rearchitected to be machine-readable, early use cases around skills, agents and MCP to streamline component integration, support teams on best practices, and generate interfaces grounded in our guidelines. This space moves fast and changes every day — our goal is to make sure the design system is ready at every major turn.
Speakers
avatar for Martin Molcrette

Martin Molcrette

Design System Engineer • Product Designer, Adeo Services
Product Designer & Design System Engineer at ADEO.
I work at the intersection of design, engineering, and AI, exploring how design systems, tokens, and automation can help teams build scalable and consistent products.
AG

Antoine Guiot

Front-end developer, External - ADEO Services
avatar for Charles-Antoine Queste

Charles-Antoine Queste

Head of Design Ops, ADEO Services

Wednesday May 27, 2026 14:00 - 15:30 CEST
🏐 PRACTICE ZONE #4 135 Rue Sadi Carnot, Ronchin, France

14:45 CEST

Cleaning the data lake without drowning: A PM & DataOps story
Wednesday May 27, 2026 14:45 - 15:15 CEST
Storage is often treated as an infinite, invisible commodity, until the bill explodes or the Data Lake turns into a swamp. At Decathlon's scale, managing storage isn't just an infra topic; it's a **Product** that requires strategy, value measurement, and a serious cleanup.

In this session, **Lucie** (Senior PM) and **Soufian** (DataOps Engineer) share their unfiltered journey of reclaiming control over their storage zones. From the first discovery interviews to the automated deletion of Petabytes of data, they’ll reveal how they teamed up to turn a growth crisis into a sustainable efficiency model.

In this session, they will provide a deep dive into the practical synergy between:
- **Product Management for Infra**: How to apply PM frameworks to technical topics like storage costs.
- **The DataOps Engine**: A look under the hood of their automated cleanup stack (S3 Lifecycle, Delta Vacuum) and how they mitigated risks.
- **Cultural Shift**: How they moved from "keep everything" to "smart archiving" by design, proving that deleting is also delivering.

Whether you're a PM or a Dev, you'll leave with concrete tips on how to apply Product methodology to technical debt and ensure your Data Lake stays healthy and ready for the AI era.
Speakers
avatar for Soufian Salhi

Soufian Salhi

Decathlon
As Cloud Infrastructure Engineer, Soufian has been contributing to the technical storage layers since 2022 for Decathlon’s Data Factory. For the past year, he has focused on the Data Lake's efficiency, developing the automated frameworks and cloud environments needed to manage data... Read More →
avatar for Lucie Bailly

Lucie Bailly

Decathlon
Senior Product Manager within Decathlon’s Data Factory, Lucie has been tackling data challenges since 2012. Over her 14-year career, she has explored the various dimensions of data, from BI and Data Engineering to Data Governance, at leading scale-ups such as Criteo and Doctolib... Read More →
Wednesday May 27, 2026 14:45 - 15:15 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

14:45 CEST

Democratizing quality: Using AI to empower non-dev contributors and prepare scalable test automation
Wednesday May 27, 2026 14:45 - 15:15 CEST
Increasing automated test coverage is often less about tools and more about creating the right foundations.

In this talk, we will share how our mobile team dramatically increased unit test coverage in a Flutter codebase — **from 8% to 80% in four months** — by combining AI-assisted development and systematic improvements in application testability.

We leveraged shared prompts with GitHub Copilot to help developers generate unit tests across multiple use cases. In parallel, we introduced semantics and tags throughout our UI architecture, from our design system (ADS) to shared component libraries (ACC, ADC) and the application itself.

This instrumentation allowed QA engineers to **gain autonomy** and start preparing UI automation independently, without constantly relying on developers.

We will share the practical lessons from this journey: what worked, what didn’t, and how these foundations enabled us to launch our UI automation strategy. We will also share what are our future plans to give more tools to contributors with a less technical background.
Speakers
avatar for Marion Livoy

Marion Livoy

Quality Engineer, Ext - ADEO Services

avatar for Alexandre Mardon

Alexandre Mardon

Lead Engineer, ADEO Services
Alexandre MARDON
Lead Engineer for the Customer Mobile Application at Adeo
Wednesday May 27, 2026 14:45 - 15:15 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

15:00 CEST

Live coding the hive: Building a micro services ready modular monolith
Wednesday May 27, 2026 15:00 - 15:45 CEST
After a decade, the industry has realized that poorly designed microservices can easily turn into a distributed monolith, often more problematic than the spaghetti monolith they aimed to address. To tackle this issue, the concept of a modular monolith is emerging as an alternative approach.

However, the challenge still lies in effectively splitting it without falling into the pitfall of tightly coupled modules. The Hive pattern helps you build a microservices-ready modular monolith, by leveraging multiple hexagonal architectures and vertical slicing, each module is loosely coupled and ready to be extracted as a separate service.

During this live coding session, we will begin with a legacy spaghetti monolith and migrate it step-by-step to a Hived modular monolith, wrapping up with a demonstration of extracting a module and transforming it into a separate micro-service.
Speakers
avatar for Julien Topçu

Julien Topçu

CTO, Shodo
Julien est un CTO et Tech Coach avec 15 ans d'expérience, spécialisé dans le Domain-Driven Design (#DDD). Son expertise réside dans l'aide aux organisations pour construire des systèmes à forte valeur métier. Julien se concentre sur l'alignement de l'organisation, de l'architecture... Read More →
avatar for Thomas Pierrain

Thomas Pierrain

VP of Technology, Shodo.io

Wednesday May 27, 2026 15:00 - 15:45 CEST
2 - GRAND PAVILION

15:00 CEST

Material configurator: Standardization and omni channel in construction system sales
Wednesday May 27, 2026 15:00 - 15:45 CEST
The Material Configurator emerges as a strategic solution to professionalize and streamline sales in the construction materials sector. Facing operational challenges such as high employee turnover and the technical complexity of product families like Partition Walls, Ceilings, Roofs, Floors, and ETICS (External Thermal Insulation Composite Systems), this digital tool standardizes the quotation process through a guided flow of key questions.

The configurator eliminates the barrier of lacking technical expertise, enabling any salesperson to recommend complete systems in just a few minutes. This guarantees two critical objectives: Quick Purchase, optimizing customer and collaborator time in the materials yard, and Complete Purchase, ensuring that no accessory or forgotten reference penalizes project execution or sales figures.

Furthermore, the project marks a milestone in our omnichannel strategy. By integrating into the website and app, customers will no longer have to select references in isolation, reducing the risk of error and allowing for a seamless transition from digital pre-sales to final conversion at the warehouse. In essence, the Material Configurator is not just a material calculator, but a lever for professional advice that enhances the customer experience and profitability per operation.

Key Highlights
From Product to System: We prevent the loss of accessory sales by ensuring the customer gets everything needed for their project (ETICS, ceilings, etc.).
Democratization of Expertise: Any employee can quote complex projects from day one, flattening the learning curve.
True Omnichannel: The quote that starts on the sofa at home with the website materializes seamlessly at the physical point of sale.
Speakers
avatar for Alejandro Larios E

Alejandro Larios E

OBRAMAT Iberia
Alejandro Larios - Lead Developer of Omnicommerce at OBRAMAT Iberia
Full-stack developer with 12 years of experience and a builder's mindset. Passionate about going beyond the developer's perspective: building software that feels like it was made for real people. Driven by a simple philosophy: build things as if they were your own, with care for every... Read More →
avatar for Jose Javier Salas J

Jose Javier Salas J

Obramat Iberia
Jose Javier Salas
Product Manager | Store & Sales Experience Vertical at OBRAMAT Iberia
Combining 6+ years of Product Management expertise with a founder’s mindset. Passionate about building omnichannel ecosystems that redefine how collaborators work and customers shop... Read More →
Wednesday May 27, 2026 15:00 - 15:45 CEST
4 - MEDIUM STAGE

15:15 CEST

Everyone builds the experience. Journeys make it one.
Wednesday May 27, 2026 15:15 - 16:45 CEST
**When everyone builds part of the experience, keeping it coherent becomes one of the biggest challenges.**

Many customer experiences, such as conversational interfaces cut across product teams in platform, commerce and business units. Yet organizations are rarely structured to manage them that way. As a result, work becomes fragmented, responsibilities unclear, and experience quality inconsistent.

In this talk, we will share how we used **Journeys Management** to bring structure and alignment to one of these transversal topics: conversational experience.

We used the shared Adeo customer framework to allow design teams, commerce teams, platform product teams, and business units to collaborate through the same experience lens. Supported by a journey management tool, this approach made the experience visible across teams and helped harmonize work.

To guide product teams without prescribing solutions, we also introduced **Experience Level Agreements (XLAs)**—textual experience guidance and measurable experience metrics that define what good looks like for customers.

**The result:** clearer collaboration, better-structured requests between commerce teams and products and business units and commerce teams, improved work quality, and a shared direction for evolving the experience.

This talk shows how journey management can become **a practical collaboration and governance layer for complex, cross-team experiences.**

```
Speakers
avatar for Jeremie Boudet

Jeremie Boudet

UX Designer, ADEO Services
**Jérémie - Head of UX, CCDP Platform**

As the Head of UX for the CCDP platform, Jérémie oversees the Pro & Customer perimeter with a deep expertise in design methodologies and Journey Management,a topic he has championed within Adeo for several years.
He is a firm believer that Journey Management is is a powerful lever for solving day-to-day alignment issues and providing the visibility needed to elevate the quality of work for everyone. With a human-centric approach and a "glass-half-full" philosophy, Jérémie focuses on driv... Read More →
avatar for Mehdi Akeniouine

Mehdi Akeniouine

Ext - ADEO Services
Wednesday May 27, 2026 15:15 - 16:45 CEST
🏀 PRACTICE ZONE #1 135 Rue Sadi Carnot, Ronchin, France

15:30 CEST

From traditional search to knowledge graph-powered engine: The Leroy Merlin Brazil quotation generator experience
Wednesday May 27, 2026 15:30 - 16:00 CEST
The Quotation Generator is an innovative solution designed to fully automate the creation of customer quotes, transforming a traditionally manual, time-consuming process into a seamless digital experience. At the heart of this initiative lies a critical challenge: accurately interpreting free-text inputs and recommending the right combination of products to build a complete and reliable quote.

In the second half of 2025, with the strategic support of Adeo and in partnership with TheOdo, we explored different approaches to address this challenge. In particular, we experimented with several search and matching techniques, including knowledge graph–based methods, to evaluate their potential for improving product recommendation and quote generation.

In this presentation, we will describe the experiments we conducted, the evaluation frameworks we developed to measure performance, and the results obtained across the different approaches. We will also share the key insights and lessons learned from this exploration, including cases where traditional methods proved more effective than more complex alternatives and which experiments performed better in a production environment.
Speakers
avatar for Lucas Eduardo De Cesar Morais

Lucas Eduardo De Cesar Morais

Data Scientist, Leroy Merlin Brazil
Lucas is a **Data Scientist at Leroy Merlin Brazil** and a **Pure Mathematics undergraduate at the University of São Paulo (USP)**. He has worked on several AI initiatives within the company’s digital ecosystem.

He started three years ago, as an intern, working on the **Sales C... Read More →
avatar for Leandro Marcelo Domingues Galvao

Leandro Marcelo Domingues Galvao

Data & AI Manager, Leroy Merlin Brazil
Since 2022, Leandro Galvão has been part of Leroy Merlin Brazil, where he currently serves as Data & AI Manager. In this role, he leads key initiatives across multiple areas, including Offer, Supply, and Marketing, leveraging his expertise in data strategy, team leadership, and process... Read More →
Wednesday May 27, 2026 15:30 - 16:00 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

15:45 CEST

From POC to production: Our product RAG agent journey
Wednesday May 27, 2026 15:45 - 16:15 CEST
We are going to share the story behind the development and deployment of our Product RAG Agent, a conversational assistant integrated into our Product Detail Pages (PDP) to answer customer inquiries.

The project has been a clear success, driving a 10% increase in average basket value.

Driven by a mindset of continuous improvement, our development cycle was punctuated by three successful A/B tests between July and December. At the core of our architecture lies the vectorization of product manuals and packaging data. However, moving to production revealed unexpected challenges, specifically regarding latency issues and skyrocketing costs.

We will detail how we rapidly tackled these SLO failures and pricing concerns by enhancing our observability.

This session is a comprehensive feedback loop: come discover how we are scaling our architecture to meet tomorrow's challenges.
Speakers
avatar for Estelle Godard

Estelle Godard

Full-stack Developer, ADEO Services
Hey ! I'm Estelle, I am a Full-stack Developer at ADEO for over two years, I started this journey with a one-year apprenticeship before transitioning into a permanent role. I am currently a member of the Customer Decision team within the Search & Publication domain, working on the... Read More →
avatar for Baptiste Lecocq

Baptiste Lecocq

Ext - ADEO Services
Wednesday May 27, 2026 15:45 - 16:15 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

16:00 CEST

Agility through stability: A practical guide to successful sroducts and engaged stakeholders
Wednesday May 27, 2026 16:00 - 16:45 CEST
In many organizations, "agility" has become a synonym for chaos. Teams are caught in a reactive cycle, where the latest request becomes the highest priority, roadmaps are abandoned, and stakeholders are left feeling disconnected and frustrated. This constant firefighting leads to low-value features, developer burnout, and a high risk of failure with every release. But what if the key to true agility wasn't more speed, but **more stability**?

This session challenges the "move fast and break things" mantra, especially in a B2B context where professional users and close business partners demand predictability. We will explore a practical, battle-tested methodology that builds a high-performing product organization on a foundation of **predictable routines and clear commitments**. This system is so effective that it not only created a stable 3-week delivery cadence but also gave me the capacity to **manage two major products simultaneously**. It turns the product owner into a strategic orchestrator who is always one step ahead, protecting the team from chaos and ensuring every release is a non-event.
Speakers
avatar for Jordan Deleau

Jordan Deleau

Product Owner, ADEO Services
With 10 years of experience as a Product Owner across diverse sectors including pharmaceuticals, retail, startups, and large corporations, I specialize in building high-value B2B products. I currently lead a complex Yard Appointment Management product in the supply chain domain at... Read More →
Wednesday May 27, 2026 16:00 - 16:45 CEST
4 - MEDIUM STAGE

16:00 CEST

Let's build backends! A Hands-on guide to Kotlin & Spring Boot
Wednesday May 27, 2026 16:00 - 17:30 CEST
Ready to dive into modern backend development? Come join our hands-on workshop where we'll show you how to use **Kotlin** to build awesome **server-side apps**! We'll be focusing on how smoothly Kotlin works with the popular **Spring Boot** framework.

### Workshop content

We'll get our hands dirty with lots of practical examples and live coding. First up, we'll get a Kotlin and Spring Boot project running to show you just how clean and simple it can be. Then, you'll learn how to create clear and safe RESTful APIs using Kotlin's handy MVC DSL, which makes setting up routes a breeze.

A big part of our session will be getting the hang of asynchronous programming with Kotlin Coroutines. We'll show you how to handle tricky, long-running tasks and build super-responsive apps without getting tangled up in callbacks. And, of course, we have to talk about one of Kotlin's best features: its null-safety! We'll show you how it helps you wave goodbye to those annoying NullPointerExceptions for good, making your code way more reliable.

### Who is this for? (Prerequisites)

- You should know your way around Java and the Maven build tool.
- It helps to have a basic idea of what Spring Boot is all about.

### Outcomes

By the end, you'll walk away with the real-world skills and confidence to **start building your own backend services with Kotlin and Spring Boot**.
You'll be all set to write code that's cleaner, safer, and way more efficient!
Speakers
avatar for Thibault Duperron

Thibault Duperron

Decathlon
*Technical Lead & Developer*

A passionate technical leader with **over 14 years of experience** specializing in building custom, scalable applications. His career is marked by key roles at major tech companies like **Decathlon Digital** and **Talend**.

* **Core Expertise:** Sca... Read More →
avatar for Damien Raude

Damien Raude

Decathlon
Damien Raude-Morvan is a _Senior Staff Software Engineer_ at **Decathlon Digital**, where he contributes to the technical strategy for the “In Store” domain. His technical focus includes Observability, Architecture, Performance and IA.

With 20 years of experience in the digi... Read More →
Wednesday May 27, 2026 16:00 - 17:30 CEST
🏈 PRACTICE ZONE #3 135 Rue Sadi Carnot, Ronchin, France

16:15 CEST

Would you ship code without tests? Why do your AI agents' skills need evals
Wednesday May 27, 2026 16:15 - 16:45 CEST
Everyone is writing skills. Almost nobody is testing them and most of them are AI-generated.
Skills might get "vibe-checked" with a handful of manual runs, then shipped.

## You wouldn't ship code without tests, but why ship skills without evals?

As we transition from simple chat interfaces to autonomous AI Agents, equipping LLMs with tools (APIs, functions) has become the new standard.

This talk tackles the critical missing piece in Augmented Development: Skill Engineering and its evaluation.
We will move past the "vibe check" and dive into the methodologies required to build robust, measurable agents based on industry best practices.

## What you will learn in this 30-minute session:

- LLM-Friendly design: How to write semantic schemas and tool descriptions that models actually understand, reducing baseline errors.
- TDD for AI agents: How to define success criteria and build automated tests for non-deterministic systems.
- The evals playbook: Measuring what matters by focusing on routing accuracy (did it pick the right tool?) and argument accuracy (are the parameters valid?), including how to leverage "LLM-as-a-Judge".
- Continuous refinement: Using failed evals and production telemetry to iteratively improve your skill prompts without touching the underlying business logic.

## Stop guessing if your agents work.

Join this talk to learn how to test, measure, and refine your AI skills with the same rigor as traditional software engineering.
Speakers
avatar for Thomas D'hulst

Thomas D'hulst

Mobile software engineer - CMA, Ippon Technologies


Wednesday May 27, 2026 16:15 - 16:45 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

16:15 CEST

Security starts in the code: Why security by design matters
Wednesday May 27, 2026 16:15 - 16:45 CEST
In today's digital platforms, security incidents rarely start with hackers, they start with design decisions.

Modern applications are built on complex ecosystems of APIs, microservices, cloud-native infrastructure, and rapidly evolving development pipelines. In this environment, vulnerabilities are often unintentionally introduced during the earliest phases of software design and development.

Yet in many organizations, security is still treated as a final checkpoint rather than a foundational design principle.

This talk challenges that mindset.

We will explore why Security by Design must become a core engineering discipline, embedded directly into software architecture, development workflows, and product innovation. By shifting security earlier into the development lifecycle, organizations can significantly reduce vulnerabilities, accelerate innovation, and build digital platforms that are resilient by default.

Through practical insights and real-world lessons from large-scale digital ecosystems, this session will demonstrate how developers, architects, and security teams can collaborate to transform security from a blocker into an enabler of innovation.

Because in modern digital systems, security is not something you add, it is something you design.
Speakers
avatar for Fabiana Mayumi Tanaka

Fabiana Mayumi Tanaka

Head of Cibersecurity, Leroy Merlin Brazil
Fabiana Tanaka is the CISO, Head of Cibersecurity and Digital Resilience at Leroy Merlin Brazil.

With more than 18 years of experience in cybersecurity, Fabiana has led security transformation programs across multiple industries including finance, healthcare, logistics, retail, and payment systems. She is responsible for strengthening cyber resilience, data protection, and security... Read More →
avatar for Kleber Augusto Chiles Pereira

Kleber Augusto Chiles Pereira

Cybersecurity, Obramax Brazil
Kleber Pereira is a Cybersecurity Digital Leader at Obramax Brazil and a university professor. He focuses on building cybersecurity programs centered on operational resilience, risk management, and security culture, connecting technology, processes, and people to strengthen cybersecurity... Read More →
Wednesday May 27, 2026 16:15 - 16:45 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

16:30 CEST

Agentic AI: Beyond the hype, into the business
Wednesday May 27, 2026 16:30 - 17:00 CEST
In the world of retail, the "Daily Brief" for a Store Manager is a high-stakes moment of truth. Whether at Adeo or Decathlon, the challenge is identical: how to distill a mountain of data into 15 minutes of operational action. To solve this, both companies launched ambitious AI initiatives—yet our journeys, technical choices, and "Aha!" moments often differed.
In this first-of-its-kind co-presentation, the Adeo and Decathlon AI teams join forces to share their parallel quests in building intelligent assistants. We will move beyond the hype of "Agentic AI" to discuss pragmatism. While Agentic workflows offer incredible power, they come with high costs and complexity. Is a "Ferrari" always the right choice for every retail feature, or can we deliver massive value with more economical, "lean" AI models?
What we will share:
Two Paths, One Goal: A comparison of our architectures—where we aligned and where our specific retail contexts (DIY vs. Sports) forced us to diverge.
The ROI of Intelligence: How we balance the high cost of sophisticated Agents with the need for scalable, low-latency business value.
The Shared "Grit": Common failures in data reliability, interfacing with legacy systems, and the reality of deploying AI in a fast-paced store environment.
This session isn’t about perfect slides; it’s a transparent look at how two of the world's leading retailers are navigating the shift from "Data-Heavy" to "AI-Empowered" operations.
Speakers
avatar for Sébastien Staes

Sébastien Staes

Decathlon
With my teams, we define and drive the data strategy and delivery for the domains Finance and HR.
Be focus on the user needs to provide the best data solutions to reply to their needs!
avatar for Pauline Vilpini

Pauline Vilpini

Data Lead Expert, Leroy Merlin France

avatar for Victor Marchal

Victor Marchal

Leroy Merlin France
Victor MARCHAL
ML Engineer @LMFR
Wednesday May 27, 2026 16:30 - 17:00 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

17:00 CEST

Designing for unstable networks: Improving mobile UX with offline-ready architecture
Wednesday May 27, 2026 17:00 - 17:30 CEST
In-store mobile apps live and die by their network. At ADEO, our store associates use a Flutter app to scan barcodes, browse product pages, display loyalty barcodes and serve customers across 500+ stores, where network conditions range from excellent WiFi to near-dead mobile signal in the same building. Even in the biggest stores, the customer may encounter mixed ROPO experience.

In this crucial step to make the CMA a real companion for in-store experience, we will share how we worked on improving the resilience of our mobile application to network conditions in order to protect the user experience.

This talk covers the full arc: the business decision to move beyond online/offline, the UX design of a degradable interface, the technical architecture behind the state machine, the field experiment that broke our assumptions, and the iterative loop that made it all converge.

Attendees will leave with a reusable pattern, real data, and a practical framework for building mobile experiences that stay usable. We're on the road to a 5-star app by ensuring seamless performance and exceptional user experience, even in tough network conditions.
Speakers
avatar for Thomas D'hulst

Thomas D'hulst

Mobile software engineer - CMA, Ippon Technologies


avatar for Florent Codet

Florent Codet

Product designer, ADEO Services


Wednesday May 27, 2026 17:00 - 17:30 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

17:00 CEST

Building a platform: What does it mean for product teams?
Wednesday May 27, 2026 17:00 - 17:30 CEST
Our software ecosystem is more fragmented than ever as we transition from monolithic applications to dozens of specialized products. Grouped together, these services act as a platform that enables other teams to build upon various use cases.

But what does this mean for you when working within this platform? What are the key changes?

During this session, we will try to cover everything you need to know, starting with the platform engineering mindset and its technical implications (who said APIs and standardization ?).

As leader of the Decathlon Data Platform stack, we will also share the successes and failures of our journey—moving from siloed systems to unified documentation, product catalogs, lifecycles, and APIs. And all of this with one goal : better adoption, efficiency and customer satisfaction !
Speakers
avatar for Bastien Verdebout

Bastien Verdebout

Decathlon
Bastien Verdebout : Leader of Decathlon Data Factory, aka the internal Data & AI stack.
Previously, i worked 10 years at OVHcloud as Product Manager lead for Data And AI portfolio.
Wednesday May 27, 2026 17:00 - 17:30 CEST
4 - MEDIUM STAGE

17:45 CEST

From spaghetti scripts to robust pipelines: Streamlining marketing data ingestion at Decathlon with DLT
Wednesday May 27, 2026 17:45 - 18:15 CEST
Data engineers often face a dilemma: use heavy, low-code ETL platforms or maintain a mountain of custom Python scripts for REST APIs and SFTP servers. At Decathlon, we chose a third way.

In this "Tool in Action" session, we will demonstrate how we leveraged dlt to simplify the ingestion of Marketing, SEO, and SEA data from fragmented sources (S3, GCS, SFTP, and various REST APIs) into our Datalake. We will walk through a live-coding-style demo showing how to:
- Turn a simple Python generator into a production-ready pipeline in minutes.
- Handle automated schema evolution and data typing without manual DDL.
- Implement robust monitoring and observability to ensure data quality at scale.

If you are looking to replace "manual" boilerplate code with a Pythonic, "ETL-as-code" approach, this talk is for you.
Speakers
avatar for Pierre Monnet

Pierre Monnet

Decathlon

Wednesday May 27, 2026 17:45 - 18:15 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France
 
Thursday, May 28
 

09:00 CEST

Building secure, enterprise-grade MCP servers at scale
Thursday May 28, 2026 09:00 - 09:30 CEST
As LLMs become central to our workflows, the challenge shifts from "how to prompt" to "how to give AI secure access to our data" enter the Model Context Protocol (MCP).
In this session, we will demystify MCP servers and explain why they are the missing link in enterprise AI orchestration.
I will introduce the ADEO way of doing MCP servers with a toolkit designed to ensure that every AI tool we build remains compliant with our internal standards.
We will cover how to ensure all MCP servers implement OAuth 2.0, integrate seamless observability so teams can focus on adding value with MCP servers.
Learn how to empower AI agents while keeping ecosystem secure, observable, and standardized
Speakers
avatar for Tanguy Baudrin

Tanguy Baudrin

Staff Engineer, SFEIR
D'abord développeur généraliste pendant 10 ans, j’ai ensuite passé 6 ans sur des infrastructures Cloud et DevOps. Aujourd'hui je me spécialise dans l’IA générative chez SFEIR. Mon expertise transverse me permet aujourd'hui d’accompagner chez ADEO les ingénieurs dans... Read More →
Thursday May 28, 2026 09:00 - 09:30 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

09:00 CEST

In-store observability
Thursday May 28, 2026 09:00 - 09:30 CEST
We would like to talk about the observability of our physical stores.

There are many different types of devices in the stores: POS terminals, various scanners, displays, receipt printers connected to them, customer self-checkout stations, electronic queue terminals, printers, consultants’ computers, and so on. At the same time, physical stores also contain a large amount of network infrastructure — Wi-Fi access points, routers, firewalls, the physical network itself, and internet connectivity.

Unfortunately, devices sometimes fail, internet providers occasionally violate their service levels, and our services running in GCP can become unavailable for specific stores or specific business units due to new releases or changes in network or firewall configurations. In many cases, we learn about these issues quite late — only when customers encounter problems while paying for their purchases.

Last year, the Observability Adeo team worked very closely with the LMIT, LMPT, BROM, and LMFR teams to implement observability for this entire infrastructure. We designed an observability architecture for store devices based on OpenTelemetry, while the network team is implementing a solution for collecting network metrics based on Zabbix. Using data from both sources, we can build comprehensive dashboards that show the real state of the infrastructure inside our stores, allowing us to detect and respond to incidents in a timely manner.

We already have concrete implementations of this solution in LMIT and LMPT, and we would like to present them together in a joint presentation.
Speakers
avatar for Tiago Vicente

Tiago Vicente

Senior SRE, Leroy Merlin Portugal
avatar for Pavel Chalyk

Pavel Chalyk

Tech Lead, ADEO Services

avatar for Riccardo Nobili

Riccardo Nobili

Network Leader, Leroy Merlin Italy


Thursday May 28, 2026 09:00 - 09:30 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

09:15 CEST

LEAD HER TECH - Manifesto
Thursday May 28, 2026 09:15 - 10:00 CEST
Following the successful launch of the LeaHER Tech initiative, we are pleased to take the next strategic step forward.
This session will be an opportunity to share the ambition driving us, as well as the roadmap that will guide our next steps.
We will focus on two key pillars of our development:
Global Deployment
An overview of the international initiatives supporting our mission, and how we plan to expand our impact beyond borders.
The LeaHER Tech Manifesto
The official unveiling of our manifesto — a document that defines our core values, our commitments to greater gender diversity in tech, and the action framework for all members of our community.
Join us to discover how, together, we are reshaping the role of women in the global technology ecosystem.

Speakers
RM

Raquel Marques

Platform Domain Leader, Leroy Merlin Portugal


avatar for Angela Azevedo

Angela Azevedo

HR Manager @ Global Tech & Data Platform, ADEO Services
Hi, I’m Angela. With a career rooted in HR and a heart fueled by digital innovation, I live at the intersection of people and technology. Whether you’re looking to navigate a digital career path, curious about the agility of short-term assignments, or looking for an advocate... Read More →
Thursday May 28, 2026 09:15 - 10:00 CEST
2 - GRAND PAVILION

09:15 CEST

Being a developer in 2026: From "Vibe Coding" to engineering mastery
Thursday May 28, 2026 09:15 - 10:45 CEST
The "Chat" era is dead. In 2026, the real work happens in the Terminal. Stop the disposable apps and the AI-induced FOMO; it's time to reclaim your craft.

In a world of infinite code generation, Architecture and Maintainability are the only things that separate a resilient product from an unmaintainable liability. We have reached a point where generating code is easy, but controlling it is the true engineering challenge.

Join this 90-minute hands-on lab to cut the noise, kill the "vibe coding," and master the complexity of production-ready software. Step out of the chatbox and learn how to orchestrate true Agentic Workflows.


# Lab Details: 90 Minutes to Deep Dive into 2026 Engineering

This is not a session about writing better prompts; it’s a session about upgrading your entire operating model as a developer. We will build, debug, and secure a complex application by mastering four pillars:

**1\. The Command Center (CLI First)**

Transform your CLI into an autonomous powerhouse. We will move away from passive IDE sidebars and demonstrate how to trigger agents directly from the terminal to execute complex refactoring, run diagnostics, and manage infrastructure in real-time.

**2\. Skills over Chat (Context Engineering)**

Stop prompting, start building. You will learn how to give your environment "Capabilities" (Skills and Context) to automate the grind. By injecting architectural rules and domain constraints directly into the workspace, you allow the agents to focus on your *intent* rather than forcing you to babysit their output.

**3\. The Shadow Team (Agentic Orchestration)**

You are no longer just a coder; you are the Lead Engineer of a digital squad. You will orchestrate specialized AI personas—a Security Auditor, a QA Automator, and an Architecture Reviewer—that act autonomously to challenge your plans, generate E2E tests, and secure your Pull Requests.

**4\. Engineering vs. Tokens (Sustainable Craftsmanship)**

AI can generate a million tokens per minute, but who maintains them? We will focus on the ultimate 2026 skill: System Design. You will learn how to enforce boundaries and review Agent Plans *before* they touch the codebase, ensuring that AI speed never compromises software excellence.


# Participant Prerequisites

* Professional software engineering experience (any modern stack).
* A laptop with a modern IDE and terminal access.
* The mindset of a Tech Lead willing to stop coding everything manually and start orchestrating.
Speakers
avatar for Bertrand Gressier

Bertrand Gressier

Staff Engineer, ADEO Services
For the past 25 years, I have been building software and navigating the incredible shifts in our digital landscape.From my early days developing on mainframes and the birth of the Web, all the way to today's Agentic Web revolution, I have always been driven by the evolution of technology.Currently... Read More →
avatar for Thomas Rumas

Thomas Rumas

Dev Advocate, ADEO Services
Grazia Colucci - Head of UX in Leroy Merlin Italy
Thursday May 28, 2026 09:15 - 10:45 CEST
🏈 PRACTICE ZONE #3 135 Rue Sadi Carnot, Ronchin, France

09:45 CEST

Breaking the bottleneck: Boosting AI inference for production
Thursday May 28, 2026 09:45 - 10:15 CEST
Scaling complex AI deployments demands overcoming severe latency and hardware bottlenecks, especially for resource-intensive GenAI and Deep Learning models. This session dives into the OpenVINO toolkit to demonstrate how you can seamlessly bridge the gap between trained models and high-performance production environments. You will learn practical, code-level strategies to convert, optimize, and accelerate inference for both generative and conventional AI models across today's most popular frameworks.
Speakers
avatar for Ahmed Sanaa

Ahmed Sanaa

Data Scientist, ADEO Services
I am a Senior Data Scientist at Adeo Productions (AI Factory squad) and a graduate of Télécom Paris. With over 6 years of experience, I specialize in the end-to-end delivery of AI solutions—from strategic scoping to full-scale deployment. My expertise spans Machine Learning, Deep... Read More →
avatar for Adrien Legrand

Adrien Legrand

SFEIR
ML Engineer chez Sfeir depuis début 2024, je suis titulaire d'un doctorat en ML appliqué.
Passionné par l’IA au sens large, j’ai eu l’occasion de travailler aussi bien sur une variété de POCs, allant du clustering d’images à la détection d’anomalies, que sur l’industrialisation de pipelines. J’aime lever des questions, des haltères, le coude... Read More →
Thursday May 28, 2026 09:45 - 10:15 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

09:45 CEST

Pushing code to production on friday afternoons with Flagger progressive deployments
Thursday May 28, 2026 09:45 - 10:15 CEST
A broken release on an e-commerce platform can have immediate and important financial impacts. At Decathlon, with dozens of workloads each deployed up to several times a day, the risk of human error-related incident is high.

In that feedback session, we'll share how Flagger enabled us to match velocity and serenity. By automating progressive deploy strategies, we secured the change process : less impacts from unavoidable incidents and more confident developers.

You'll discover our wins, but also the main challenges we faced and overcame along the road.
Expect a comprehensive description of the process with concrete examples, enabling the same implementation, however your kubernetes clusters are configured.
Speakers
avatar for Maxime Veroone

Maxime Veroone

Staff Engineer, Decathlon
Having started to disassemble and reconfigure computers as soon as his parents allowed him too, Maxime has spent most of his life trying to understand how computers, then servers then cloud work and how to optimize them with constrainted resources.
Now a Staff Engineer at Decathlon's Ecommerce, he focuses on continuing down that path into optimizing socio-technical systems at scale... Read More →
Thursday May 28, 2026 09:45 - 10:15 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

10:00 CEST

We’re not building a chatbot. We’re building the most helpful colleague our customers have ever met
Thursday May 28, 2026 10:00 - 10:45 CEST
What if the experience our customers have with the best in-store advisors could be available anytime, anywhere?

In this talk, we share how we are designing a conversational AI platform that extends the expertise of retail teams beyond the store, 24/7, to instantly connect customers to the right information, advice, and services.
We'll explain why we approach conversational AI not as a simple chatbot, but as a platform connecting expert AI assistants, business tools, and customer journeys.

We'll also share organizational challenges we faced when designing conversational experiences that actually help.
Speakers
avatar for Jean Gadenne

Jean Gadenne

Business Domain Leader, ADEO Services
I am Business Domain Leader for Customer Management & Care at ADEO. I lead the development of products powering customer identity, data and customer care, with a focus on building conversational orchestration platforms that connect AI assistants, business tools and customer journ... Read More →
avatar for Pauline Vasseur

Pauline Vasseur

Business Product Manager for Care, ADEO Services


Thursday May 28, 2026 10:00 - 10:45 CEST
4 - MEDIUM STAGE

10:15 CEST

GITHUB - Specialize your agents with skills
Thursday May 28, 2026 10:15 - 11:00 CEST
This session introduces Agent Skills, a standard designed to specialize AI tools like Copilot using "skills" that combine specific instructions and contextual resources. Through live demonstrations, participants will learn how to create and share these skills to transform a general-purpose AI into a truly adaptable and collaborative business assistant.

During this session, we will also highlight some key skills from Adeo and Decathlon
Speakers
avatar for Pierre LEMPERIERE

Pierre LEMPERIERE

Deputy CTO, Adeo
Thursday May 28, 2026 10:15 - 11:00 CEST
2 - GRAND PAVILION

10:30 CEST

Fine grained data provenance with Apache Spark
Thursday May 28, 2026 10:30 - 11:00 CEST
Decathlon's Data Lake is organized into progressive layers that transform data through increasing levels of complexity to power reporting, visualization (e.g., on interactive dashboards), and eventually advanced Machine Learning & AI (e.g., product recommendation, demand forecasting, dynamic pricing, …). To achieve this, we build and maintain complex, distributed pipelines written in SQL, and we leverage Apache Spark’s engine to handle Big Data processing at scale on multi-node clusters. However, complexity comes at a cost: as we stack more and more data transformations, manually tracing the exact origin of a specific data item becomes increasingly difficult and unmanageable, creating a critical need for an automated solution. We have recently recruited a Data Engineer intern and partnered with academic experts from ENS - PSL and Université Grenoble Alpes to prototype a (Fine-Grained) Data Provenance tool compatible with Apache Spark.
The ability to track the provenance/lineage of granular data portions is critical for:
- Trust & Reliability: guaranteeing the accuracy of results for data consumers.
- Root Cause Analysis: diagnosing anomalies (e.g., aberrant turnover figures) to pinpoint the exact source of a problem.
- Impact Analysis: predicting how data updates will propagate through our versioned datasets.
- GDPR compliance: ensuring that sensitive data (PII) does not unintentionally "leak" into refined datasets.
- Testing: extracting representative subsets of data for lightweight integration tests and prototyping.
In this talk, we will present few concepts of data provenance and present where we currently stand and what we plan to build in the future.
Speakers
avatar for Ronan Fruit

Ronan Fruit

Decathlon

Thursday May 28, 2026 10:30 - 11:00 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

10:30 CEST

Double-Blind Security: Come and take on the community architecture and cybersecurity kata challenge
Thursday May 28, 2026 10:30 - 12:00 CEST
## En Français

Titre : La sécurité en double aveugle : venez relever le défi du kata d’architecture et cybersécurité communautaire

Quand on définit un système, est-ce qu’il vaut mieux réfléchir d’abord à l’architecture ou à la sécurité de ce système ? Vous avez une opinion ? Pas nous ! Venez participer à cet atelier, dans lequel nous vous ferons réaliser une succession de katas pour déterminer ensemble quel ordre est préférable, si tant est qu’il y en ait un.

Nous verrons dans ces katas comment intégrer correctement le raisonnement sur la sécurité à la conception de ce système. Nous parlerons évidemment des utilisateurs légitimes de ce système et de leurs besoins de sécurité, mais aussi des utilisateurs moins légitimes et de la façon correcte d’imaginer leurs interactions avec ce système. Pour cela, vous marierez les méthodes d’architecture agile et celles de définition de risque.

Vous ressortirez de cet atelier avec des idées plus claires sur les manières d’avoir des conversations correctes avec les différentes parties prenantes de votre projet en ne mettant ni l’architecture ni la sécurité de côté. Et peut-être avec un bon ordonnancement des questions d’architecture et de sécurité si nous trouvons un consensus.

**Prérequis pour l'atelier** : N'amenez pas votre ordinateur, il ne servira à rien. En revanche, amenez votre capacité de réflexion, elle sera mise en oeuvre.

## In English

When defining a system, is it better to think about the architecture first, or the security? You have an opinion? We don’t! Come join us for this workshop, where we will lead you through a series of katas to determine together which order is preferable—if there even is one.

Throughout these katas, we will explore how to properly integrate security reasoning into the system's design. We will obviously discuss legitimate users and their security needs, but also less legitimate users and the correct way to envision their interactions with the system. To achieve this, you will marry agile architecture methods with risk definition techniques.

You will leave this workshop with clearer ideas on how to have productive conversations with your project’s stakeholders without sidelining either architecture or security. And perhaps, if we reach a consensus, we'll walk away with a solid sequencing for architecture and security questions.

**Workshop Prerequisites**: Do not bring your computer; it will be of no use. Instead, bring your thinking caps—they will be put to work.
Speakers
avatar for Sébastien Baillet

Sébastien Baillet

Security expert, Ext - ADEO Services
CTO & Cybersecurity expert at LUPISE
avatar for Nicolas Delsaux

Nicolas Delsaux

Zenika
Développeur Java pendant 15 ans, je suis devenu depuis quelques années peut-être un peu plus qu'un vieux développeur : un architecte, un référent technique, peut-être un mentor.
J'ai fait du Java dans suffisamment d'environnements différents pour apprendre beaucoup à la fois sur la technique, mais aussi sur le coeur du développement : l'humain... Read More →
Thursday May 28, 2026 10:30 - 12:00 CEST
🏀 PRACTICE ZONE #1 135 Rue Sadi Carnot, Ronchin, France

10:45 CEST

Server-Driven UI: Empowering business units with real-time, multi-channel content
Thursday May 28, 2026 10:45 - 11:15 CEST
Server-Driven UI: In today’s competitive landscape, agility is often hampered by the silos between Web and Mobile development. While Web teams can deploy in minutes, mobile teams have traditionally been limited by two-week sprint cycles and unpredictable Play Store / App Store approvals.
This friction prevents Business Units (BUs) from executing truly synchronized, multi-channel marketing strategies with native experience.

What if we could offer a "One Gesture" solution to our BUs?

Imagine giving the keys to the app directly to the BUs. That's exactly what we did. With ContentBuilder, our Server-Driven UI platform, BUs can now create, test, and publish complex landing pages and marketing content in real-time in a single step.

In this talk, we will demonstrate how we broke these silos by building ContentBuilder, a Server-Driven UI platform. This strategic shift moved the power of UI creation from core engineering teams directly to the BUs. We will show how a single configuration allows them to build, test, and ship complex landing pages and marketing content simultaneously across Web and Mobile in real-time.

Key Takeaways:
- The Multi-Channel Driver: How the need for instant, synchronized content pages reactivity across all touchpoints (loyalty, xxx) dictated our roadmap.
Democratizing Design: How we built a unified platform that allows BUs to assemble pages using a shared library of pre-validated components, ensuring brand consistency without a single line of code through ContentFull.
- The Architecture of Autonomy: A deep dive into the JSON-based contract that bridges our backend with both Web and Flutter environments, mirroring a truly universal Design System.
- Measuring Impact: Moving from a 20-day release cycle to a 5-minute "Go-to-Market" and the resulting uplift in cross-platform user engagement.
- Hard Truths & Trade-offs: The challenges of cross-platform versioning, maintaining native performance on mobile vs. responsiveness on web, and ensuring stability.
Speakers
avatar for Malo Leon

Malo Leon

Software Engineer, Ext - ADEO Services
Software Engineer and Flutter expert, I have been working for over two years on the mobile applications of Leroy Merlin, Bricoman, and Bricocenter, building large-scale mobile experiences used by millions of users.
avatar for Albane Fagot

Albane Fagot

Product Owner, ADEO


Thursday May 28, 2026 10:45 - 11:15 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France

11:00 CEST

Circularity as business as usual: integrating circular business models within Decathlon's eCommerce
Thursday May 28, 2026 11:00 - 11:45 CEST
Let’s dive together into the journey of one of Decathlon’s strategic initiatives: scale circularity, moving it from “new business models” to “business as usual”.

CONTEXT
Over the last 18 months, we’ve been exploring how to “natively” integrate circularity (second life, rental & repair) into Decathlon’s new eCommerce platform (revamp), used by millions of customers across our core markets (France, Spain, Italy, etc.)
-> Since day 1, the team’s mission has been simple: leverage eCommerce to scale circularity’s adoption and business. 

OUR MAIN CHALLENGE
Building embedded solutions that deliver business value for Circularity, without putting Decathlon’s core business at risk (aka selling new products)

OUR CONVICTION
Enabling customers to discover, consider and choose circular alternatives in a natural and transparent way… Aligned with Decathlon’s philosophy of “libre meilleur choix” (“free best choice”)

THEMES WE WILL COVER
Product discovery, multiple stakeholder engagement, driving outcomes vs building outputs, co-design, experimentation culture (A/B testing), shaping new consumption behaviors, gaps between what people say vs what they do, etc.

SPOILER ALERT 🚨
We will be sharing big wins, but also epic fails :)

Together, let’s “Make Circularity Great Again the New Normal!” ✌️



[FR version below]

"Circularity as business as usual" - intégrer de façon native les offres de l'économie circulaire au sein du eCommerce chez Decathlon

Je vous propose de partager un retour d'expérience sur le travail mené depuis 1 an et demi par mon équipe sur l'intégration de l'économie circulaire (seconde vie, location et réparation de produits sportifs) au sein du site eCommerce de Decathlon (la nouvelle plateforme "revamp", aujourd'hui déployée dans tous les principaux pays de Decathlon et utilisée par des millions de clients en France, Espagne, Italie, Allemagne, Belgique, Pays Bas, etc.)

Le challenge porté par l'équipe était simple: faire progresser la part du digital sur le business de l'économie circulaire, en se concentrant particulièrement sur l'amélioration du trafic et de la conversion. Notre parti-pris: intégrer ces différentes offres de la façon la plus naturelle et transparente possible, de façon à mieux faire connaître ces offres alternatives, tout en assurant le "libre meilleur choix" aux clients de Decathlon.

Spoiler alert: on a eu de beaux succès, mais aussi des "epic fails" (car tout ne s'est pas passé comme prévu)

Au sein de ce vaste sujet, voici autant de sous-thématiques qu'il sera possible d'aborder (avec plus ou moins de profondeur): product discovery, gestion des parties prenantes (sujet au carrefour de multiples équipes), outcome vs output, co-design, culture de l'expérimentation (A/B testing), transformation des habitudes de consommation, écarts entre les tests utilisateurs (ce que les gens disent) et la vie réelle (ce que les gens font), etc.
Speakers
avatar for Vanessa Lopez Prado

Vanessa Lopez Prado

Product Manager Ecomm Circular Business Models, Decathlon
avatar for Robin Bauer

Robin Bauer

Staff Product Designer @ Circular Business Models, Decathlon
Thursday May 28, 2026 11:00 - 11:45 CEST
4 - MEDIUM STAGE

11:15 CEST

Transformer-Based Reranking: Bringing semantic intelligence to E-commerce
Thursday May 28, 2026 11:15 - 11:45 CEST
Offering the right product in the right place: the Holy Grail of e-commerce. Yet, in a catalog of millions of items, a bestseller can become "noise" if it appears out of context. While popularity has long dominated ranking systems, it has now hit a glass ceiling. How do we move from purely statistical sorting to more intelligent navigation?

Within the AAAI team at ADEO, we reached a radical conclusion: behavioral signals (clicks, sales) modeled by classic ML are no longer enough. They are semantically blind. The result? A category can become flooded with accessories or unrelated products simply because they are cheaper and highly clicked, ultimately breaking the browsing experience.

In this session, we will take you behind the scenes of our hybrid ranking architecture. We will detail how we integrated the power of Transformers into the heart of our engine to re-inject context where algorithms were once "deaf" to the meaning of words.

On the Agenda:
The End of "Click Dictatorship": Why behavioral ML alone creates harmful popularity bias.

Semantic AI in Action: How we use Transformers to map user navigation intent to catalog reality.

Hybrid Architecture: Making the precision of a Cross-Encoder coexist with the scalability of a ranking model (like XGBoost).

Results & Lessons Learned: Real gains measured in ranking quality, limitations encountered, and takeaways from deploying on a massive scale.

Techniques covered: Python, ZenML, Transformer Models, Statistics, NDCG, ML

Target Audience: Data Scientists, ML Engineers, Product Owners

Level: Intermediate
Speakers
avatar for Alex Lenfant

Alex Lenfant

Data Scientist, Ext - ADEO Services
Alex LENFANT – Data Scientist
A former flight test engineer in the aerospace industry turned AI enthusiast, Alex traded Airbus cockpits for ranking algorithms. While he no longer lands planes, he now ensures that your browsing in the "Drills" category doesn't go into a tails... Read More →
Thursday May 28, 2026 11:15 - 11:45 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

11:15 CEST

Artificial Intelligence at Pellenc ST: from experimentation to industrial reality
Thursday May 28, 2026 11:15 - 12:00 CEST
At Pellenc ST, artificial intelligence is deployed directly into industrial systems operating in real-world waste sorting environments. This talk shares practical feedback on transforming AI prototypes into reliable, production-ready solutions with measurable ROI. We will present concrete use cases combining computer vision and spectrometry, and discuss the challenges of working with complex, noisy data collected under harsh industrial conditions. The session will cover key topics such as model robustness, edge deployment constraints, and system integration within high-performance machines. A strong focus will be placed on operational excellence: monitoring model drift, ensuring observability, and maintaining performance over time. We will also share insights on cost-performance trade-offs and technology choices in an industrial context. Finally, we will highlight how AI can contribute to sustainability by improving sorting efficiency and material recovery — demonstrating that AI can be both economically and environmentally impactful.
Speakers
avatar for Kevin Alazet

Kevin Alazet

AI Development and Industrialization program manager, Pellenc ST
AI Development & Industrialization Program Manager at Pellenc ST, I am responsible for bringing artificial intelligence from prototype to production in industrial waste sorting systems. I work on deploying computer vision and spectrometry-based models directly into real-time machines... Read More →
Thursday May 28, 2026 11:15 - 12:00 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

12:00 CEST

From KPI Chaos to GenAI-readiness: How we structured Analytics at Decathlon and centralized KPI definition "as-code" in a federated Semantic & metrics layer
Thursday May 28, 2026 12:00 - 12:30 CEST
Decathlon's decentralized analytics organization faced **KPI Chaos**, which was a bottleneck for next-gen BI and **AI-readiness**. This talk explores how establishing an **Analytics Center of Excellence (CoE)** enabled the delivery of a **federated Semantic layer**.

The Analytics CoE is driven by **Staff Engineers for Analytics**. Using **transversal leadership** and a **communities-based model**, we were able to source bottom-up bandwidth for transversal projects without dedicated budgets or direct hierarchical authority.

This empowered the delivery of `insight-all-metrics`, a **federated Semantic layer** built on **Databricks Metric Views** and **dbt**. Domains centrally expose their shared KPIs via simple YAML files. Then, any data practitioner can easily compute those KPIs. Leveraging **materialization features** reduced compute costs and enabled the instantaneous querying required for real-time GenAI applications.

By gathering together the **Metric Layer** (SQL logic to compute KPIs) and the **Semantic Layer** (natural language context) within a single repository, we bridged the gap between human questions and database queries. This single governed source of truth now powers both **Tableau Pulse** and **Databricks Genie**, marking our successful transition to **GenAI for BI**.

I will live demo some features.
Speakers
avatar for Sébastien Staes

Sébastien Staes

Decathlon
With my teams, we define and drive the data strategy and delivery for the domains Finance and HR.
Be focus on the user needs to provide the best data solutions to reply to their needs!
avatar for Hugo Palmer

Hugo Palmer

Decathlon

Thursday May 28, 2026 12:00 - 12:30 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

12:00 CEST

One lib to rule them all: Building a reusable library
Thursday May 28, 2026 12:00 - 12:30 CEST
In a large-scale tech organization sending an email seems like a solved problem – until you look under the hood and discover that teams keep reinventing the wheel. This leads to massive code duplication, fragmented implementation and lack of centralized observability.

In LMIT we decided to tackle this technical debt by building a reusable library designed as a high-impact MVP. This session is a “return of experience” on the journey of creating a centralized deployment model within our corporate infrastructure, starting from BU Italy with the ambition to scale. We'll dive into the architectural challenges of creating a tool that is robust enough for enterprise scale yet simple enough for developer adoption.

We'll discuss
- How a shared library reduces boilerplate and speeds up the "time-to-market" for new features.
- Our architectural approach to ensure security, traceability, and high deliverability by design, moving away from "every team for themselves".
- Strategies to make the library easy to use, focusing on intuitive APIs, and seamless integration into existing developer workflows.
- The challenges of integrating a common tool into the global infrastructure while maintaining BU autonomy.
Speakers
avatar for Alessandra Turolla

Alessandra Turolla

Full-stack Developer, Leroy Merlin Italy
Full-stack Developer at LMIT since 2021. With a coding journey that started in 2013, I work daily with Vue, Typescript, and Java, primarily focusing on the PDP and HF3P areas. Outside of work, I'm a proud millennial nerd with a deep love for video games and board games – always... Read More →
avatar for Caterina Buccoliero

Caterina Buccoliero

Leroy Merlin Italy


Thursday May 28, 2026 12:00 - 12:30 CEST
👾 DEV/TECH ARENA 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

Centralized sites management: Secure your network, simplify your life
Thursday May 28, 2026 14:00 - 14:30 CEST
This presentation will explore how we address the complexities of network management in large-scale environments. In such a landscape, responsibilities are shared between the central and local teams. The central team is in charge of the SD-WAN solution, including providing training and advice to local teams, while the local teams are responsible for their own specific perimeters, which can be one or multiple sites.

A primary goal for us was to ensure that people can manage their perimeter in a simplified and straightforward way, free from excessive complexity.

In this sense, this interface—or portal, as we call it—was a direct response to the challenge of managing a growing number of sites (stores, warehouses, headquarters, etc.). It is designed to simplify the management of SD-WAN resources like firewall rules and devices.

Ultimately, the portal aims to transform Decathlon's network management from a manual, site-by-site process into a more scalable and automated approach.

What You Will Learn
- What was the initial motivation for creating this portal? And why did we create it?
- How do we monitor the management of the sites?
- How do we prevent users from making unauthorized configuration changes?
- The process for creating new Decathlon sites from an SD-WAN perspective and how local teams can manage their own sites.
Speakers
avatar for Cheikna Dansoko

Cheikna Dansoko

Decathlon
DevOps Engineer in Network UNITED team
avatar for Quentin Lelong

Quentin Lelong

Decathlon
Network Engineer in Edge Network Team
TechLead / PO SD-WAN United solutions
Thursday May 28, 2026 14:00 - 14:30 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

14:00 CEST

GenAI in the Real World: Bridging the Gap Between Group Strategy and ERP Execution ?
Thursday May 28, 2026 14:00 - 14:45 CEST
Our Product Group manages core reference data for products and partners used across Retail supply chain operations. This foundation supports critical processes including sourcing, planning, distribution, and wholesale execution.

In this session, we will share our experience integrating Generative AI into an established and complex product ecosystem.

Our discussion will focus on:

-Embedding GenAI into our Group Product Strategy

-Driving AI adoption through internal AI champions

-Creating an innovation space within a complex, enterprise-scale environment

-Integrating GenAI into non-native digital products

-Breaking organizational and system silos, particularly within an SAP-based ERP landscape

-Building the Operating Model progressively while delivering tangible business value

We will also present a concrete innovation use case:
a GenAI-powered solution supporting Business Partner creation for Wholesale operations, illustrating how AI can streamline processes, reduce friction, and generate measurable operational impact.

This session highlights the reality of deploying GenAI in a structured enterprise context — not as a standalone experiment, but as an embedded capability within core business systems and operating models.
Speakers
avatar for Aynur Gurbuz

Aynur Gurbuz

Decathlon
Product & Transformation Leader | From Global Supply Chains to Digital Platforms

I’m a product leader with 15+ years of experience across Southeast Asia, the Middle East, and Europe, starting on the ground with suppliers, logistics, and operational realities before moving into... Read More →
avatar for Lucie Leturcq

Lucie Leturcq

Decathlon

Thursday May 28, 2026 14:00 - 14:45 CEST
4 - MEDIUM STAGE

14:45 CEST

We will do them later - A Talk About LLM Evals
Thursday May 28, 2026 14:45 - 15:15 CEST
Coding Agentic Systems is fun — it feels like magic!
Vibe-coding Agentic System is even more fun — double magic, hah!?

But quality evaluation of LLM generations? That part is usually… boring.
And if you’re not in the Python ecosystem, good luck finding a framework that actually works for you.
So eval tasks quietly sit in our backlogs, waiting for better days, the v2 release, or some future “we’ll fix it later.”

Drawing from real experience building production RAGs, agentic pipelines, and LLM-powered features across different stacks, I'll share the lessons learned the hard way — what broke, what worked, and what we wished we'd measured from day one.
The goal of this talk is simple: make evals understandable, and the creation process easy — with Coding Agents doing the heavy lifting alongside you. Practical tips, tricks, and a fresh perspective on making evaluation a natural part of developing LLM-powered applications.
Speakers
avatar for Nail Khusainov

Nail Khusainov

Staff Engineer - ML/AI, ADEO Services
12 years cooking ML systems — occasionally burning them, but hey, sometimes they turn out great!
Thursday May 28, 2026 14:45 - 15:15 CEST
🤖 DATA/AI ARENA 135 Rue Sadi Carnot, Ronchin, France

14:45 CEST

AIOps & Agentic AI: How to Diagnose Your Product's Blind Spots in 10 Minutes
Thursday May 28, 2026 14:45 - 15:15 CEST
In a modern "RUN" environment, the challenge isn't a lack of data, but the time required to make sense of it. Manually auditing an incident to understand why an alert didn't fire—or identifying recurring patterns across hundreds of tickets—is a tedious process that often takes hours of manual "investigative" work.

At LMFR, we’ve automated these critical tasks using Agentic AI and the Model Context Protocol (MCP). By connecting AI agents directly to our monitoring and ticketing stack (ServiceNow, PagerDuty, Datadog), we have transformed post-incident analysis into a 10-minute automated process.

In this 30-minute demo-driven session, we will deep-dive into two major use cases:

- The Automated Observability Audit: We will demonstrate how an AI agent analyzes a past incident to answer three crucial questions: What was missing to prevent this? What could have detected it faster? How can we strengthen our alerting? The agent cross-references logs and traces to identify the "invisible" gaps in your monitoring strategy, ensuring the same incident doesn't catch you off guard twice.

- Smart Incidentology & Trend Analysis: Moving beyond individual tickets, we’ll show how AI can analyze the entire history of a product to uncover structural flaws. By identifying the most frequent defects and recurring pain points, the agent helps Ops teams move from "Firefighting" to true Problem Management, providing a data-backed list of priorities for the product backlog.
Speakers
avatar for Peter Fontaine

Peter Fontaine

Ext - Leroy Merlin France
Originally a Developer, I transitioned into the world of DevOps and SRE four years ago to bridge the gap between building code and maintaining production. As an AI enthusiast and observability advocate, I am passionate about making the "invisible" visible. My current mission at LMFR... Read More →
avatar for Amaury Pruvot

Amaury Pruvot

Product Manager, Leroy Merlin France

Thursday May 28, 2026 14:45 - 15:15 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

14:45 CEST

MAKE ARCHITECTURE MORE CONSUMABLE
Thursday May 28, 2026 14:45 - 15:15 CEST
What if architectural artifacts allowed you to see things from new perspectives, shedding new light on making more informed decisions? Yes, but architecture is complex, and I don't understand all the concepts... What if it were now accessible and user-friendly?
Speakers
avatar for Bruno Duterte

Bruno Duterte

Enterprise Architect, ADEO Services
With an engineering degree from EUDIL (Polytech Lille) in his pocket, Bruno began his professional experience at Sopra Steria. After 20 years serving numerous clients in the retail, industry, banking, health and defense sectors, for large groups and startups, as a developer, exchange... Read More →
Thursday May 28, 2026 14:45 - 15:15 CEST
🧩 PM/UX ARENA 135 Rue Sadi Carnot, Ronchin, France

15:00 CEST

MOTHERDUCK - Bullsh*t AI Is Over. Real analytics with just a prompt
Thursday May 28, 2026 15:00 - 15:45 CEST
We've spent years writing SQL, building Python pipelines, and waiting weeks for insights stuck behind a Jira ticket. What if anyone could go from a question to an answer with just a prompt?

Let's be honest, until late 2025, that was fiction. The demos looked great on stage. Production? Not so much. But something actually shifted. Models got genuinely good at structured output, MCP became the standard to connect LLMs to real tools, and DuckDB made it possible to query anything without infrastructure.

In this talk, I won't oversell. I'll build a full analytics workflow live — from raw data to insights using just natural language. First with a frontier model to show what's actually possible today with DuckDB and MotherDuck. Then with open-source models running entirely locally — no data leaving your network, no cloud dependency.

If you've been burned by AI demos that only work on slides, this one's for you. Expect a real demo, honest tradeoffs.
Speakers
avatar for Mehdi Ouazza

Mehdi Ouazza

MotherDuck
I started my career in data 10+ years ago as a data engineer, working in large corporates like AXA setting up on-prem Spark clusters (yes, that old!) to tech unicorns building data platforms in the cloud at Klarna, Back Market, and Trade Republic.

Over the years, I found a passi... Read More →
Thursday May 28, 2026 15:00 - 15:45 CEST
1 - MAIN STAGE

15:00 CEST

Maturity Models: Boring Frameworks or Your Secret Weapon for Enriched Growth?
Thursday May 28, 2026 15:00 - 15:45 CEST
Join three Global Transformation Success experts for a 30-minute deep dive into the world of Maturity Models (Project & Product Management). We will strip away the bad reputation of these assessments and reveal how they serve as powerful catalysts for standardization, continuous improvement, gain in reliability for Digital Products, and help to industrialise their deployment.
Thanks to concrete examples in Adeo Ecosystem (Global Ready, Engineering Index, Adeo Product Grade, Activation Maturity Index, UX Bar, Change Ready,..), we will identify some tips to design, execute and animate these frameworks.
Speakers
avatar for Jean-Christophe Perrot

Jean-Christophe Perrot

Global Transformation Success - Head of Onboarding - Project, ADEO Services

avatar for Bastien Bourlez

Bastien Bourlez

ADEO Services

avatar for Valentin Jans

Valentin Jans

Onboarding expert, ADEO Services
Recovering Product Manager turned Onboarding Expert. I build onboarding frameworks by constantly asking my past self: 'Would I have hated using this?' The result: practical tools that actually make teams' lives easier.
Thursday May 28, 2026 15:00 - 15:45 CEST
4 - MEDIUM STAGE

15:15 CEST

Being a developer in 2026: From "Vibe Coding" to engineering mastery
Thursday May 28, 2026 15:15 - 16:45 CEST
The "Chat" era is dead. In 2026, the real work happens in the Terminal. Stop the disposable apps and the AI-induced FOMO; it's time to reclaim your craft.

In a world of infinite code generation, Architecture and Maintainability are the only things that separate a resilient product from an unmaintainable liability. We have reached a point where generating code is easy, but controlling it is the true engineering challenge.

Join this 90-minute hands-on lab to cut the noise, kill the "vibe coding," and master the complexity of production-ready software. Step out of the chatbox and learn how to orchestrate true Agentic Workflows.


# Lab Details: 90 Minutes to Deep Dive into 2026 Engineering

This is not a session about writing better prompts; it’s a session about upgrading your entire operating model as a developer. We will build, debug, and secure a complex application by mastering four pillars:

**1\. The Command Center (CLI First)**

Transform your CLI into an autonomous powerhouse. We will move away from passive IDE sidebars and demonstrate how to trigger agents directly from the terminal to execute complex refactoring, run diagnostics, and manage infrastructure in real-time.

**2\. Skills over Chat (Context Engineering)**

Stop prompting, start building. You will learn how to give your environment "Capabilities" (Skills and Context) to automate the grind. By injecting architectural rules and domain constraints directly into the workspace, you allow the agents to focus on your *intent* rather than forcing you to babysit their output.

**3\. The Shadow Team (Agentic Orchestration)**

You are no longer just a coder; you are the Lead Engineer of a digital squad. You will orchestrate specialized AI personas—a Security Auditor, a QA Automator, and an Architecture Reviewer—that act autonomously to challenge your plans, generate E2E tests, and secure your Pull Requests.

**4\. Engineering vs. Tokens (Sustainable Craftsmanship)**

AI can generate a million tokens per minute, but who maintains them? We will focus on the ultimate 2026 skill: System Design. You will learn how to enforce boundaries and review Agent Plans *before* they touch the codebase, ensuring that AI speed never compromises software excellence.


# Participant Prerequisites

* Professional software engineering experience (any modern stack).
* A laptop with a modern IDE and terminal access.
* The mindset of a Tech Lead willing to stop coding everything manually and start orchestrating.
Speakers
avatar for Bertrand Gressier

Bertrand Gressier

Staff Engineer, ADEO Services
For the past 25 years, I have been building software and navigating the incredible shifts in our digital landscape.From my early days developing on mainframes and the birth of the Web, all the way to today's Agentic Web revolution, I have always been driven by the evolution of technology.Currently... Read More →
avatar for Thomas Rumas

Thomas Rumas

Dev Advocate, ADEO Services
Grazia Colucci - Head of UX in Leroy Merlin Italy
Thursday May 28, 2026 15:15 - 16:45 CEST
⚽️ PRACTICE ZONE #2 135 Rue Sadi Carnot, Ronchin, France

15:30 CEST

From Chaos to Control: Mastering High-Impact Incidents at ADEO and DECATHLON
Thursday May 28, 2026 15:30 - 16:00 CEST
When a critical incident strikes a complex system, every second counts.

The initial moments—the "time to engage"—are often lost trying to identify and gather the right experts. This delay can impact our customers and our business.
Who to call? How long does it take to get the right experts in the same room? Should we communicate among our Business Units ?

At ADEO, we have evolved our incident management process. Over the past year, we have implemented a "War Room" system for Priority 1 incidents on Google Chat.

With a single trigger, this tool automatically:
- Identifies and mobilizes the correct product and operations teams.
- Creates a dedicated Google Chat space and Google Meet for immediate collaboration.
- Provides incident managers with the tools they need to lead effectively and accurately.

In a 30-minute session, we can present this innovative tool, its key features, and the significant impact it had on reducing our time to engage and improving transparency.
Speakers
avatar for Yoana BOYADZHIEVA

Yoana BOYADZHIEVA

Support Engineer - eCommerce Production Leader, Decathlon
avatar for Manuel Tagliani

Manuel Tagliani

Ext - ADEO Services
With a career started in a L3 maintenance/support team,
I have built a diverse skill set like Operations, DevOps, Product Owner and was part of Head of Ops team at ADEO.
My passion for automation led me to develop THOR (To Help Our Runners), a innersource tool that help runners/ops... Read More →
Thursday May 28, 2026 15:30 - 16:00 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France

16:15 CEST

AI-Assisted Codebase Migration: Changing Legacy Stack to a Modern One
Thursday May 28, 2026 16:15 - 16:45 CEST
Legacy codebases often sit in valuable but neglected state because migrations are costly, risky, and domain-knowledge intensive.

Large language models help change that. By analyzing code, tests, and docs, LLMs can produce helpful code changes and findings in seemingly forgotten parts of our legacy code. As a force multiplier, LLMs can help accelerate migrations to modern stacks and reduce the cognitive overhead, letting small engineering teams execute bigger migrations with larger confidence.

In this talk we'll go through:
- LMPL's experiences with migrating legacy PHP code to modern Java stack
- efficiency gain within a small and focused migration team
- how to counteract the traps and issues with LLM-driven code migrations of large codebases
Speakers
avatar for Jedrzej Andrykowski

Jedrzej Andrykowski

Senior DevOps Engineer, Leroy Merlin Poland
Mainly related to Java environment. Fan of DevOps culture and broadly understood automation of everything. Enthusiast of Domain-Driven Design. From time to time appears as a speaker. In free time guitarist and a extreme music lover.
avatar for Pawel Kowalski

Pawel Kowalski

Developer, Leroy Merlin Poland
Senior Software Engineer at LMPL
Experienced in Java and PHP, with a strong background in back-end development and a solid understanding of front-end technologies. Occasionally takes on DevOps-related tasks, enjoying the challenges they present. Outside of work, is passionate about cycling and often spends free time... Read More →
Thursday May 28, 2026 16:15 - 16:45 CEST
3 - LAB 135 Rue Sadi Carnot, Ronchin, France
 
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