| 2004- present | Research Professor, CS Department, Vorarlberg University of Applied Sciences |
| 2003-2004 | Vertretungsprofessor, CS Department, University of Dortmund |
| 1997-2003 | Heisenberg fellow of the Deutsche Forschungsgemeinschaft(DFG, German Research Foundation), University of Dortmund |
| 1997 | Habilitation at the CS Department, University of Dortmund |
| 1996-1997 | Research Associate, CS Department XI, University of Dortmund |
| 1993-1996 | Research grant of the DFG for preparing the Habilitation, Department of Computer Science XI, University of Dortmund |
| Jan. 1993-Mar.1993 | Sabbatical at the Computing Center of the University of Mannheim |
| 1990-1992 | Research Scientist, Darmstadt University of Technology, Department of Electronics, Theory of Electromagnetic Fields working group |
| 1990 | Lectureschip for Electrical Engineering, University of Applied Science Karlsruhe(FH Karlsruhe) |
| 1989 | Dissertaion, Dr.rer.nat. (PhD), Department of Physics, Bauhaus-University Weimar |
| 1984-1989 | Research Assistant and Postdoc at the Physics Department and the Computer Science Department, Bauhaus-University Weimar |
| 1982-1984 | R & D Engineer Power-Semiconductors, Reliability Physics Deprtment, VEB Gleichrichterwerk Stahnsdorf |
| 1982 | Diploma in Theoretical Electrical Engineering, Technical University of Ilmenau |
| 1977-1982 | Study of Electrical Engineering, Technical University of Ilmenau |