Real estate PropTech platforms, fleet logistics networks, climate tech startups, and transit agencies frequently search to hire a freelance PostGIS, Mapbox, Deck.gl & geospatial GIS programmer. I am Aldian Fazrihady, a Senior Freelance Full Stack Developer and Geospatial Systems Engineer available via Upwork.
Core PostGIS & WebGL Mapping Capabilities
- High-Performance PostGIS Spatial Queries: Designing GiST and SP-GiST spatial indexes, `ST_DWithin` radius searches, polygon intersection queries, H3 hexagonal spatial indexing, and dynamic Mapbox Vector Tiles (`ST_AsMVT`) directly from PostgreSQL.
- Interactive Mapbox GL JS, MapLibre & Deck.gl UIs: Rendering hundreds of thousands of real-time GPS assets, transit routes, and GeoJSON layers at 60 FPS using WebGL instancing and React.
- Routing & Isochrone Engines: Integrating OSRM, Valhalla, and Google Routes API for multi-stop vehicle routing and travel-time polygon analysis.
Frequently Asked Questions
How do you render 100,000+ map markers in React without freezing the browser?
Instead of DOM markers, I serve binary Mapbox Vector Tiles (`MVT`) directly from PostGIS or render GPU-accelerated WebGL layers via Deck.gl and Mapbox GL cluster layers.
How can we hire you as a freelance PostGIS & Mapbox programmer?
Contact me on Upwork.