Friedrich Lindenberg is a media scientist turned coder working on open government and transparency initiatives.

As a developer at the Open Knowledge Foundation, he is contributing to OpenSpending, an international effort to make financial data accessible. After presenting the German state budget on OffenerHaushalt.de in 2010, he is now working on technologies that allow the budgets and spending records of any state and region to be visualized and explored. In CKAN, a community-driven data catalogue project, Friedrich has helped to create data portals for a number of European administrations and is working on an effort to create a pan-European data catalogue at publicdata.eu. He is the author of Adhocracy, a collaborative drafting software used by the Internet commission of the German Bundestag and several political parties and organizations to enable citizens to contribute to policy documents and to vote on them.

On the 1st Brazilian Open Data Meeting, Friedrich will cover CKAN and the Open Spending project on his talk "Open Tools for Open Data: CKAN and Open Spending".