I've been working as a GIS specialist since 1996. In the beginning, dealt with Mapinfo, Smallworld as a Magik developer. My application in Smallworld in forest management has been used since 2004. Then developed standalone applications for forestry and decision support system for extinguishing fires in forests using Mapx, MapExtreme in C# Visual Studio. Now develop road routing app under PyQgis, PyQt, PostgreSQL, Pgrouting.