| 1996–1998 & 2002 |
Student Dean (Prodekan), Faculty of Science, University of Zürich |
| 1991 |
Visiting Professor, University of British Columbia, Vancouver BC |
| 1988-2005 |
Associate Professor of Biochemistry (tenured), University of Zürich |
| 1981 |
Assistant Professor of Biochemistry |
| 1977 |
Habilitation in Biochemistry (Privatdozent) |
| 1975 |
Group leader at Department of Biochemistry, University of Zurich |
| 1973–1975 |
Postdoctoral Fellow at MRC Laboratory of Molecular Biology, Cambridge (Prof. Brian Hartley) |
| 1971–1973 |
Postdoctoral Fellow at The Weizmann Institute of Science, Rehovot (Prof. Arieh Berger & Prof. Ephraim Katzir-Katchalski) |
| 1971 |
Dr. sc. nat., ETH Zürich (Prof. Robert Schwyzer & Prof. René Humbel) |