Andreas is a GIS manager at the City of Uster. He uses PostgreSQL as the central data warehouse of the city's geodata. The GIS competence centre of the City of Uster uses and supports several Open Source projects as part of its GIS infrastructure, such as PostgreSQL/Postgis, QuantumGIS, gdal/ogr, and quite a few other projects. Together with Stefan Keller, Andreas also offers PostgreSQL/Postgis courses in Switzerland. Andreas is also the founder of the SVG Open conference series, the annual conference of Scalable Vector Graphics developers and users.