| 1985-1990: | Scientific Assistant, Department Computer Science, TU Kaiserslautern |
| 1991-1992: | Development Engineer, Litef GmbH, Freiburg |
| 1992-1994: | Scientific Assistant, German Research Center for Artificial Intelligence (DFKI), Saarbrücken |
| 2000-2015: | Chair for Media Informatics, Ulm University |
| 1994-2015: | Member of the Faculty Council, Ulm University |
| 1998-2002: | Dean of Studies Computer Science, Ulm University |
| 1999-2015: | Board Member Center for General Scientific Continuing Education (ZAWiW), Ulm University |
| 2006-2008: | Vice Dean Faculty of Engineering and Computer Science, Ulm University |
| 2008-2010: | Dean Faculty of Engineering and Computer Science, Ulm University |
| 2008-2017: | Board Member SFB/TRR 62, Ulm/Magdeburg |
| 2010-2015: | Elected Member of the Senate, Ulm University |
| Since 2015: | President of Ulm University |