An experienced engineer in the Location Intelligence sector, Dennis started his professional career as a land surveyor for a local government in North Rhine-Westphalia, Germany. After relocating to London in the noughties he became a GIS professional and graduate geographer.

As a fellow of the OSGeo community Dennis likes to promote free and open source software for geography (FOSS4G).
While skilled in geodesy, cartography, geomatics, and all things considered mapping, his day-to-day job is software engineering with a particular concern for community, mentoring, technical documentation, and developer experience.