Freelancer profile translated to English.
Back to original languageAbout Wilson
Welcome to my profile!
Companies are investing heavily in Data, BI, and GenAI products. My role?Building the analytical layer that transforms these investments into concrete decisions.
With experience alongside industry leaders (Sanofi, LVMH, Bouygues, Nestlé), I operate at the intersection of technical Data, Product, and Business.
Recently integrated into Sanofi's GenAI team, I designed the data and analytics layer behind Concierge, an LLM conversational assistant deployed company-wide. There, I manage LLM evaluation, AI agent monitoring, and product analysis for a GenAI system in production.
🎯 What I bring to you:
- GenAI & Product Analytics:LLM evaluation, RAG performance, agent routing accuracy, conversational AI quality, AI observability.
- BI & Dataviz:Design of actionable dashboards (Power BI, Tableau, Looker) focused on decision-making — not just reporting.
- Data Engineering:ETL pipelines, analytics engineering, robust and scalable SQL/Python workflows in production.
- Strategic Analysis:Interface between data, AI product teams, and business stakeholders.
🛠️ My Technical Stack:
SQL | Python | Power BI | Tableau | Snowflake | GCP (BigQuery) | Dataiku | Looker Studio | LLM Evaluation | Prompt Engineering | RAG | AI Agents
💡 My Approach:
I combine technical expertise with a product vision. I don't deliver raw numbers: I translate them into clear, actionable recommendations for Top Management.
Ready to discuss your Data, BI, or GenAI challenges? Contact me!
French
Native or bilingual
English
Native or bilingual
Can work on-site
Paris (up to 50km), Bordeaux (up to 50km), Lyon (up to 50km)
Experience
- SanofiProduct Data AnalystHEALTH AND WELLNESSMay 2025 - Today (1 year and 1 month)Paris, FranceMember of the core team building and operating Concierge, Sanofi's internal GenAI assistant — a multi-agent conversational AI platform connected to Microsoft Graph (email, calendar, org chart), ServiceNow, SharePoint, and specialized LLM agents (Clinical Studies, Digital Portfolio, Brand, Web, Support).As Data Analyst & Data Engineer, I own the data layer behind product decisions — measuring adoption, evaluating LLM response quality, and turning usage signals into roadmap inputs across product, CX, and engineering teams.What I do:
- LLM & AI Agent Evaluation— Designed frameworks to assess response quality, agent routing accuracy, hallucination rates, and RAG retrieval performance. Built scorecards for conversational AI quality and prompt engineering iterations.
- GenAI Product Analytics— Defined and tracked key metrics for an LLM-powered product: user engagement, feature adoption (notifications, rewards, prompts), conversation depth, retention, and behavioral cohorts to inform roadmap priorities.
- Data Engineering & Pipelines— Built and maintained ETL pipelines integrating multi-source data (Google Analytics, AmazonDB, telemetry, LLM logs) with automated QA, data quality frameworks, and AI observability layers ensuring reliable analytics in production.
- Real-time Dashboards & Monitoring— Deployed monitoring solutions (Power BI, Looker Studio) tracking product KPIs, agent performance, latency, and adoption — including AI-specific metrics (token usage, response time, agent success rate).
- Strategic Partnership— Acted as data partner to PMs, AI engineers, and CX teams, translating complex analytics into clear narratives and embedding data-driven thinking into agile cycles around a GenAI product.
Stack:Python · SQL · Power BI · Looker Studio · Google Analytics · AmazonDB · LLM evaluation · RAG · Prompt engineering · AI agents · Conversational AI · AI observability · ETL · Analytics engineering - BOUYGUES TELECOMSenior Data AnalystTELECOMMUNICATIONSOctober 2024 - Today (1 year and 8 months)Meudon, FranceEmpowered decision-making for over 50 stakeholders by deploying a modern data analytics ecosystem using Tableau Software, SQL, and Google Cloud Platform, ensuring data-driven insights were accessible and actionable across all levels of the organization.
- Spearheaded the design and refinement of interactive Tableau dashboards tailored to the needs of diverse teams, enabling stakeholders to identify trends, optimize performance, and align strategies efficiently
- Engineered and maintained scalable data solutions on Google Cloud Platform, creating a secure and flexible data infrastructure to adapt to evolving business priorities and support seamless access to insights
- Championed data reliability by introducing advanced quality assurance frameworks, ensuring consistent and trustworthy analytics outputs to guide strategic initiatives and day-to-day operations
- Collaborated closely with top management to perform deep-dive analyses of key metrics, translating complex datasets into strategic recommendations that supported growth plans and drove impactful decisions
- Nespresso FranceData Analyst B2BAGRICULTURESeptember 2023 - August 2024 (1 year)Issy-les-Moulineaux, FranceProvided data and insights to over 50 stakeholders, primarily in France and across the European zone, by building a robust analytics infrastructure that supported real-time decision-making and data trust across departments.
- Directed the creation and continuous optimization of PowerBI dashboards, leveraging advanced data visualization techniques to provide actionable insights to both local and international teams, enhancing decision-making processes across regions
- Designed and maintained complex databases, establishing robust data architecture to support evolving business needs and facilitate efficient data access for stakeholders
- Led data trust initiatives by implementing rigorous quality assurance processes to ensure the accuracy and reliability of data, enabling precise analyses that inform critical business decisions
- Conducted in-depth strategic analyses of customer data in collaboration with top management, utilizing insights to develop growth strategies and refine cross-regional initiatives in alignment with broader organizational goals
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Education
- Master Grande ÉcoleNEOMA BS2020Spécialisation Marketing Digital
Certifications
- Hands-On Essentials: Data Warehousing WorkshopSnowflake2024