I build geospatial systems that turn maps, routing, and spatial data into production-ready tools.
My work sits around GIS backend services, web mapping, route analysis, geofence validation, spatial ETL, and map-first product interfaces.
Focus : GIS engineering, spatial intelligence, routing, validation
Backend : Python, Node.js, PostGIS, Docker, cloud services
Frontend : JavaScript, MapLibre GL, interactive geospatial UI
Data : ETL, geocoding, topology checks, transport and building datasets
Advanced route debugging interface for graph edges, turn-by-turn steps, and routing engine behavior. Open demo |
Public transport cluster maps and spatial exploration workflows for Singapore mobility data. Open site |
Geometry validation tool for polygons, self-intersections, topology checks, and geofence QA. Open demo |
| Spatial correctness Topology, coordinate systems, validation, and reproducible data checks. |
Fast map UX Interactive layers, readable cartography, and responsive geospatial interfaces. |
Routing systems OSRM-style debugging, network analysis, distance, duration, and route metadata. |
Production data ETL pipelines, deployment hygiene, observability, and pragmatic automation. |
maps routing postgis maplibre geospatial-data spatial-etl gis-backend