About William
I have been a Product Manager for three years, specialising in the management and delivery of digital products (mobile, web, back-end) in complex environments: multi-team projects, international projects and migrations.
I support my clients in scoping, prioritising and delivering digital products on time using a Lean approach (focus on user value, short iterations, continuous improvement), on highly complex and large-scale projects (10 million+ users for EURO 2024, migration of 1 million+ files, post-acquisition integration).
👉 Let’s discuss your project and bring it to life!
French
Native or bilingual
English
Native or bilingual
Can work on-site
Barcelone (up to 10km)
Experience
- TheodoProduct ManagerRETAIL (LARGE RETAILERS)September 2025 - February 2026 (5 months)Paris, France
Product Manager | Rexel
Group backoffice discovery- Led a group-level discovery across 7 countries + HQ: 30+ interviews, per-country feature matrices, cross-market synthesis to identify functional commonalities and divergences
- Delivered actionable insights to frame a group-level backoffice unification strategy
- TheodoProduct Manager | Public InstitutionPUBLIC SECTORAugust 2025 - September 2025 (1 month)Paris, France
Product Manager | Rexel
RAG evaluation & improvements- Ran 15+ expert interviews to map evaluation gaps and build a rigorous benchmark (57 questions, custom metrics including stability & traceability)
- Led manual expert evaluation to validate automated scoring and identify system gaps
- Drove system improvements across retrieval, prompt engineering and corpus expansion from 491 to 21k+ documents
- Explored GraphRAG (Neo4j, static & dynamic ontology) as a key avenue for future improvement
- TheodoProduct ManagerHEALTH AND WELLNESSAugust 2024 - August 2025 (1 year)Paris, France
Product Manager | Qare x HealthHero
Post-M&A product migration & integration- Integration of 120+ French legacy endpoints into a shared UK-FR medical system with AI
- Data migration of 1M+ user records
- Delivery of 40+ core features from the UK former medical tool
- Cross-team UK-FR coordination: product/tech alignment, dependency management and migration milestone tracking
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Education
- Programme Grande EcoleEM Lyon Business School2023
- Fullstack Web DevelopmentLe Wagon2020Bootcamp intensif de programmation de 9 semaines : - Développement back-end avec Ruby on Rails et SQL - Développement front-end avec HTML, CSS, Bootstrap, JavaScript et jQuery - Expérience complémentaire avec Git, GitHub, Heroku et le développement d’API basiques