Freelancer profile translated to English.
Back to original languageAbout Gaëtan
10 years of expertise serving your Data strategy. Member of the SCOPA expert cooperative, I combine business vision and technical execution to transform your data into critical assets.
🎯 Areas of Intervention
➤ Generative AI & LLMOps: Design of RAG systems, intelligent agents (LangChain, Pydantic AI) and deployment (Docker, Kubernetes).
➤ Lead Data & Architecture: Design of scalable infrastructures and data governance (BigQuery, Snowflake, PostgreSQL).
➤ Data Science & ML: From POC to industrialization of predictive models (Python, NLP, Time Series).
➤ Strategic Support: Stack audit, Data roadmap management, and team mentoring.
🛠 Technical Stack
➤ Languages & Frameworks: Python, SQL, Flask/FastAPI, LangChain, Pytest.
➤ Cloud & Infra: GCP (BigQuery), AWS, Azure, Terraform, GitHub Actions.
➤ Data Ops: Docker, Kubernetes, MLOps, CI/CD.
🎓 Knowledge Sharing
➤ Lecturer in Master's programs & Engineering schools: Training in Python, Statistics, and AI.
Ideal mission format:
➤ Sprint (2-4 weeks): Audit, GenAI POC, or Data MVP.
➤ Long-Term Support: Technical lead and structuring of your Data department.
"A data scientist is better at statistics than any developer and better at development than any statistician"
French
Native or bilingual
English
Fluent
Can work on-site
Lyon (up to 50km)
Experience
- BetaGouvData EngineerPUBLIC SECTOROctober 2025 - Today (8 months)Lyon, FranceI intervene within the state startup on various subjects:- Implementation of an ETL between the GRIST tool and the MEC application (Mon Espace Collectivité)- Automatic classification by labeling CRTE, Fonds Verts, Village d'Avenir projects- Creation of an API for detecting duplicates in the various project databases
- HomeServeAnalytics EngineerENERGY AND UTILITIESAugust 2023 - Today (2 years and 9 months)Lyon, FranceI am attached to a Product Team where I am responsible for carrying out all analyses related to HomeServe's assistance product sales.I am also responsible for modeling and valuing HomeServe's digital data using the Piwik tool.Since 2025, I have been an Analytics Engineer within the Digital Leads team to manage the entire data valorization chain from various digital sources.
- OptevenData ScientistBANKING AND INSURANCEMarch 2022 - March 2023 (1 year)Villeurbanne, FranceWithin the IT department and its Data service, I worked as a Data Scientist on the implementation of the DS architecture and the specifications for related topics.
Reviews
B
Bruno
Audit Data - ENERSHIP
Reviewed on 4/28/2026
Data audit mission conducted with rigor and professionalism.
Clear presentation, concrete and directly actionable recommendations, fluid exchanges from start to finish.
Thomas
Thomas Siegwald
Reviewed on 7/12/2024
I asked Gaëtan to set up a small AI capable of redrawing portraits, he did it with incredible speed and it works very well! Looking forward to continuing to work with him, it's great :))
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Education
- Engineer in Applied Mathematics and ModelingPolytech Lyon2015