| since 2026 | Councel at wkf ag in Zurich |
| 2010 - 2025 | Partner at wkf ag in Zurich |
| 1996 - 2010 | Partner at Arnold Wehinger Kaelin & Ferrari in Zurich |
| 1993 - 1995 | Partner at Becchio Wehinger & Juri in Zurich |
| 1987 - 1992 | Councel and general secretary in a Swiss listed Finance and Industry Holding company in Zurich |
| 1985 - 1986 | Councel at Schlanger Cook Cohen Mills & Grossberg in Houston, Texas |
| 1983 - 1984 | Councel at Borgwardt & Harms Attorneys, Hamburg, Germany |