Freelancer profile translated to English.
Back to original languageAbout Gildas
Data & AI Engineer
5 years in tech scale-ups.
Today, I'm a freelance Founding Engineer: I join early-stage projects to establish the architecture, build data pipelines, and deploy AI agents.
🏗️ Experience
- Stealth hotel startup
End-to-end data pipeline and LLM agent in production: scraping, enrichment, ingestion, RAG architecture, evaluation
- Choose
GCP data infrastructure from scratch: multi-source ingestion pipelines, self-service BigQuery data warehouse on Metabase, ML platform, AI/LLM automations, Terraform, Github actions
- Lydia
Data pipelines for analytics and production ML models, data APIs, microservices design and architecture with backend teams, internal web applications
- Deezer
Modeling, aggregations, and analytics engineering
🛠️ Stack
- Cloud: GCP (BigQuery, Dataflow, Vertex AI, Cloud Run...)
- Data: Python, SQL, Prefect, Airflow, dbt
- ML/AI: AI Agents, LLMs, Langchain
- Dev: FastAPI, Supabase, Terraform, Docker, CI/CD
🎯 What I do
- Data infrastructure from scratch: pipelines, scraping, data warehouse
- AI Agents & LLMs in production
- MLOps & model deployment
📩 Launching a data or AI product? Let's talk
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 10km), Nantes (up to 10km), Lyon (up to 10km), Bordeaux (up to 10km), Lille (up to 10km)
Experience
- Startup hôtellerie (stealth)Founding Engineer • Data & AIHOSPITALITYDecember 2025 - Today (6 months)Paris, FranceFounding Engineer mission within an early-stage startup in the hotel sector:• Data pipeline: scraping, enrichment, ingestion (Python, Playwright, S3, Hugging Face)• AI Agent: architecture, embeddings, tooling, evaluation (FastAPI, Supabase, PgVector, Langchain, Deepeval)
- ChooseSenior Data EngineerE-COMMERCEJanuary 2023 - October 2025 (2 years and 9 months)Paris, France• Design and implementation of a scalable and cost-optimized Data & ML infrastructure (Terraform, GCP, BigQuery, dbt, Prefect, Airbyte)• Development of FastAPI services for ML recommendations, automation via AI agents, and data service• Creation of internal web tools in Next.js to automate workflows and reduce reliance on Google Sheets• Leadership of cross-functional initiatives on the design system, contributing vision, design, and architecture• Design of an A/B testing system including cohort creation, event tracking, and analytical integration• Integration of Meilisearch to enable search for campaigns and products within the application
- LydiaLead Data EngineerBANKING AND INSURANCEJanuary 2020 - January 2023 (3 years)Paris, France• Creation of an ELT framework in Python and SQL based on Airflow, Bigquery, and MariaDb• Data ingestion via streaming pipelines (Pubsub, Beam/Dataflow) and batch (API, buckets)• Development of internal web applications (Django, Svelte.js) and Rest APIs (FastAPI) deployed on Kubernetes in a microservices architecture• Design of Python scripts and packages for ML tooling• CI/CD pipelines with Github Actions• Architecture of various data services and tools• Onboarding and mentoring of new team members
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Education
- EngineerIMT Atlantique | Mines de Nantes2020Diplôme d'ingénieur, option Génie des Systèmes d'Information En plus des compétences informatiques, mon parcours en école d'ingénieur via un une classe prépa m'ont permis de développer de solides compétences en mathématiques, physique, électronique, sciences sociales et de gestion...