1) Must have experience in working with GIS-based tools such as ArcFM, ArcGIS Desktop/Online or similar ESRI ArcGIS products.
2) Experience and knowledge in any Open source GIS map tools (such as QGIS, OpenGeo Suite, dig, Grass GIS, CartoDB, Mapnik).
3) Knowledge in integrating vector and raster file formats such as Shapefiles, GeoTIFF, GeoJSON, KML, GML, WKT, TIGER.
4) Knowledge in any spatial database such as Oracle Spatialite, PostGIS, etc. He/she must have the knowledge on the spatial queries and functions, setting up spatial databases.
5) Knowledge in using and integrating OpenLayers3 with different maps.