Chairman of the Circuits and Systems Section of the Faculty EEMCS at TU Delft

Chairman of the Dutch Technology Foundation STW -the Dutch funding agency for academic research in Technology

Director of DIMES, the Delft Institute for Microelectronics and Submicron Technology

Professor in Network Theory and Chairman of the CACD and Signal Processing Laboratory, Delft University of Technology

Associate Professor in Numerical Analysis, Catholic University of Leuven

Qualified Researcher in Circuit and System Theory and Numerical Mathematics, Belgian National Fund for Scientific Research

Lecturer in Electrical Engineering, University of Lagos Teaching Duties in Electronics and Microwave Techniques
Head of the Electronics Laboratory and the Microwave Laboratory

Associate Researcher in Mathematics (ONR Fellow), University of California at Berkeley

Teaching Assistant in Electronics, Catholic University of Leuven