Yoann Jaffrain

With an initial education as a Grandes Écoles engineer (Telecom Paris), I am an expert in geographic data, spatial analysis, cartography, and GIS. An ideal profile for processing spatial data and solving complex problems. Versatile. Concise. Analytical. Creative. Fully operational in remote work (but travel possible to Paris, London, Rennes, Nantes...).

WHY HIRE ME?

- Implementation of pipelines (ETL, ELT, dbt, SQL, POSTGIS, Arcgis, Big Query, DataBricks)

- "Cartographic / Geospatial Data" solution based on client needs

- Knowledge of ESRI ArcGIS Online solutions (Python and JS API)

- Spatial analysis, problem understanding, creation of decision-making maps

- Custom map creation (vector tiles, basemaps)

- Front-end development in JavaScript webmapping (mapbox, maplibre)

- Technical training for your teams

- Machine learning: data cleaning, feature engineering

WHO AM I EXACTLY?

With an initial education as a network engineer (Telecom Paris ENST), I have a strong appetite for data, algorithms, geometry, and data visualization.

HOW CAN WE WORK TOGETHER?

With natural enthusiasm, I will contribute to your projects. I can work within a team or take full charge of your project depending on its complexity and your technical environment. Missing a technical skill on your CV? No worries, I haven't listed everything and I learn quickly. Don't have a Data Engineer (Geo data analyst)? I can work part-time (e.g., 1 day per week) or on a time-and-materials basis.

AND NOW?

All projects are different, all technical solutions are different, let's discuss your project!