OpenStreetMap Developer

OpenStreetMap (OSM) is the largest freely available map dataset in the world — maintained by an active community. Anyone who wants to build maps without ongoing license costs and without being tied to Google or Mapbox cannot avoid OSM. I handle data preparation (osm2pgsql, Imposm), tile generation, and application development based on OSM.

OpenStreetMap — the Free World Map

OpenStreetMap (OSM) is the largest freely available map dataset in the world. An active community maintains roads, paths, addresses, buildings, and points of interest. Anyone who wants to build maps without ongoing license costs and without being tied to Google or Mapbox cannot avoid OSM.

For mobility applications, OSM is often the qualitatively better choice: bike paths, footways, accessibility, lanes, and traffic flow are mapped in OSM in significantly more detail than by commercial providers.

Making OSM Data Production-Ready

Raw OSM data is a massive dataset in XML or PBF format. Before it can be used in an application, you need a preparation pipeline: import into PostGIS (via osm2pgsql or Imposm), filtering relevant regions, tile generation (with Tilemaker or Planetiler, for example), and the right map styling.

I take on this entire pipeline — from raw data import to the finished map in the MapLibre frontend.

OpenStreetMap Services

Setting up OSM-based map stacks, regular data updates, integration with routing engines like Valhalla, geocoding with Nominatim, data exports, and QGIS-based quality assurance. Including migration of existing applications away from Google Maps or Mapbox.