I am a senior GIS software devloper.
Perfect understanding of open source GIS and open source GIS libraries such as QGIS, GDAL/OGR, GEOS, proj4, PostGIS, MapServer, OpenLayer.
Programming with pyQGIS.
Rich experience of Web Mapping with Leaflet/Mapbox
Experience with PostgreSQL/PostGIS sql programming.
Rich experience with ArcGIS and ArcGIS Engine.
Special experience with Virtual 3D Globe
Good understanding of open source virtual globe such as Cesium, NASA WorldWind, OsgEarth, Marble
Organization of large spatial data.
Experience of a rendering of the large spatial dataset such as raster, vector, 3d building.