AI Architect & Product Builder · Paris
I build AI products, from the first prototype to production. 20+ years of shipping software, and since 2023, everything I build is GenAI-based.
Today I lead GenAI architecture at Betclic. Before that, 7 years at AWS, where I built 30+ prototypes for customers across EMEA: each time me and the customer's team, from the architecture to a working prototype in 2 to 6 weeks. One customer's need became Agent Squad, a framework for multi-agent apps. We open-sourced it, it grew to 7.7k stars, and AWS now lists it in its official Guidance for Multi-Agent Orchestration, next to LangGraph.
Some problems I noticed turned into products I built: StreetLens and Back From My Trip today, and back in 2014 BandBike, one of the first peer-to-peer bike rental sites in France.
I start from the business and from the end result, the product people will use, then work backwards to how to build it. That is where I find the real problem, and often the idea for the next project or a better direction.
AI is in two places in my work. Inside the products, the model does only what a model is good at: it reads and understands what people write or ask. Code does the rest and keeps its answers within limits. And while I build, a coding assistant is a fast pair of hands: it writes code, docs and tests under my direction, and nothing ships that I can't explain. That is how StreetLens and Back From My Trip both went live in 2026, alongside my job at Betclic.
What I love is the whole product: the idea, the architecture and the UX.
Leads GenAI architecture across the company.
Designed and delivered 30+ production-ready prototypes, 2 to 6 weeks each, for AWS customers across EMEA: GenAI, serverless and media streaming. GenAI-only after ChatGPT launched.
Hundreds of customers, from large companies to startups.
Serverless APIs on AWS Lambda, API Gateway and Kinesis.
Led the migration of legacy systems to AWS. Java and Spring Boot backend services. Managed a team of five engineers.
Client missions in banking and insurance: Société Générale CIB, BNP Paribas CIB, BNP Paribas Cardif, BNP Paribas retail. Also Karavel and Française des Jeux. Java/J2EE, Oracle, grid computing.
GPS audio guides, 6 cities, 8 languages, on the App Store. Search in plain words and it builds a walking tour on the fly. A multi-step LLM pipeline researches sources, extracts facts, writes the narration from them only, then evaluates it against those facts and repairs what fails (90–95% fixed automatically) before voicing it. Pipeline and API built with my co-founder Anthony Bernabeu; the iOS app and the design are his.
Trip reports with one verdict: would I go back? LLMs work in the background: they moderate reports, extract places and check photos. Anything uncertain goes to a person. They never write a word of the story.
One of the first peer-to-peer bike rental sites in France, launched in July 2014: owners list their bikes, every listing is checked by hand before it goes live, riders search by city and find one nearby. I built the platform and took it to production, alongside a full-time job. 100+ bikes listed in under 4 months. Covered by 20 Minutes (national daily, 15.5M readers a month) and the cycling press.
10 talks, workshops and bootcamps at AWS, including AWS re:Invent and AWS Summits. The ones with a public trace:
Engineer's Degree (Diplôme d'Ingénieur), Computer Science and Automation
French (fluent), English (fluent), Romanian (native), German (basic)