Rennes urban planning agency · 2024 – present

Migration of a legacy ETL estate to Python, with a web application to run and monitor every data flow.

• 180 Pentaho jobs → 40 Python pipelines, orchestrated from a FastAPI + HTMX control app
• Sources: PostgreSQL/PostGIS, public APIs, national statistics files (INSEE)
• 3 environments with anomaly detection and a controlled DEV → PROD deployment path
• Updating a full territorial observatory now takes one day, fully automated

flowchart LR
    A[Public APIs · INSEE · files] --> B[Python pipelines]
    B --> C[(PostgreSQL / PostGIS)]
    B -.-> M[Monitoring & anomaly detection]
    C --> D[FastAPI]
    D --> E[Observatories & WebGIS]

Speech-to-text and meeting summaries for the agency's teams, built with Vue 3 + FastAPI on European models (Mistral Voxtral, Mistral Large). Presented internally to staff.

WebGIS demo of an interactive housing-plot layout for a private developer: MapLibre, PostGIS, vector tiles.

• Applications Lead, AUDIAR (Rennes) — since Dec. 2024, previously GIS / WebGIS engineer
• WebGIS developer, Modaal (Lyon) — real-estate data visualization
• Founder, Drekky Studio — websites for craftsmen & freelance geospatial engineering
• MSc Geomatics, Université Rennes 2

• Reliability first — reproducible pipelines, separate environments, controlled releases
• Data quality is a feature — freshness checks, anomaly detection, metadata
• Maintainable over clever — code the next person can read, run and extend
• Data sovereignty — self-hosting and European providers when it makes sense