Lecturer Campus Cologne
| 1995-2000 | University of Siegen: Degree Program in Media Planning, Development, and Consulting, Degree: Diplom-Media Manager |
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| since 2013 | Media University of Applied Sciences, Campus Cologne: Lecturer for Digital Media Economics and Media Technology |
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| since 2011 | Host Europe GmbH, Cologne: Head of Product Management for Web Hosting |
| since 2010 | Signatis GmbH, Karlsruhe: Managing Director |
| 2005-2011 | 1&1 Internet AG, Karlsruhe: Senior Product Manager and Team Leader |
| 2001-2005 | Buhl Data Service GmbH, Neunkirchen: Project and Product Manager |
| since1998 | Self-employed activity in the field of digital media production |
| since 1997 | Instructor for Media Technology and Online Media Production |