Joël Hempenius joined Merkator BV in March 2013. Joël has brought a set of geospatial capabilities to Merkator that will enable us to extend our knowledge base further in the growing Opensource community. He has worked successfully with geospatial libraries SharopMap, PostGIS, GeoAPI, NetTopologySuite, GDAL and OGR among others. He has worked extensively with OGC-standards like WMS and WFS and this in both Open Source environments like OpenLayers and using commercial products like Esri's ArcGIS and ArcObjects. Next to this he is also specialized in 3D GIS rendering, visualization and application development. Joël has a Master in Geographical Information Management and Applications (Utrecht University - The Netherlands, 2010).