Hi, I’m Johannes Filter.

I use technology as a tool for social progress and I am into open-source software.

I am an independent researcher, software developer and data analyst. My work is focused on human-computer interaction, machine learning and natural-language processing. Currently, I am freelancing so contact me for future collaborations. Besides, I hold a master’s degree in computer science from the Hasso Plattner Institute in Potsdam, Germany.

I am an activist for more transparency in the public sector and I am part of the German open data / civic tech / freedom of information community. Because I still believe in the liberating effect of open-source software, I regularly contribute to it on GitHub.

I have a blog about tech and programming (in English). Also, I write about my investigative reporting using German FOIA laws on ifg.jfilter.de (in German).

Check out my previous work and follow me on Twitter.