BioTill is one of the founders of the German language FOSSGIS conference series and joined his first OSGeo Conference in Minneapolis in 2005 before it was even called FOSS4G.
Till also put a lot of effort into building the local and regional community and helped form FOSSGIS e.V., the legal body of the German language OSGeo Local Chapter which he also co-chaired for some years.
In his main job he is founder, agile coach and consutant at terrestris, an Open Source GIS company focused on web based FOSS4G software development and also of mundialis a more on Big Data and Remote Sensing Data processing focussed company.
Till actively works with GIS for nearly 25 years and with FOSS4G Software since 2003. As an agile coach he works as scrum master and he introduces agile methods into both companies.
Till was the chair of FOSS4G 2016 in Bonn and now chairs OSGeo's conference committee. Till is also active member of FOSSGIS e.V. and on the board of OSGeo-Europe.