Geographer by education, software engineer by vocation. I started getting into the free/open source side of geographic information software during my studies and have not looked back since. These days, I work mostly on things related to routing and navigation, but I have experience across the stack in the broader geospatial domain.
I am a regular contributor to the Valhalla Routing Engine and I am open for contract work. You can reach out to me at chrstn [at] bwnkl [dot] de.