| 2004- | Associate professor (UHD) at the Department of Information and Computing Sciences, Utrecht University. |
| 1996-2004 | Assistant professor (UD) at the Department of Information and Computing Sciences, Utrecht University. |
| 1995-1996 | Researcher at the Department of Computer Science, Utrecht University. |
| 1994-1995 | Researcher at the Department of Mathematics (Computational Science), Utrecht University. |
| 1994 |
PhD degree in Computer Science from Utrecht University. Title of thesis: Motion planning amidst fat obstacles. |
| 1990 |
Professional Doctorate in Engineering (PDEng) in
Software Technology
from the Stan Ackermans Institute at
Eindhoven University of Technology. Title of thesis: Planning and scheduling in crude oil refineries (with H.A.A. van Maren). |
| 1988 |
MSc degree in Computing Science from
Eindhoven University of Technology. Title of thesis: Distributed data structures for sparse linear algebra. |
| 1983 | Graduation from Bisschop Bekkerscollege, Eindhoven. |