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| Since July 2012 | German Ambassador to India, New Delhi |
| 2010 - 2012 | Special Representative of the German Federal Government for Afghanistan and Pakistan, Berlin |
| 2007 - 2010 | German Ambassador to Italy and San Marino, Rome |
| 2003 - 2007 | German Ambassador to the United Nations, Geneva |
| 2002 - 2003 | USG, Special Representative of the UN Secretary-General and Head of the UN Interim Administration Mission in Kosovo (UNMIK) |
| 1998 - 2001 | Foreign and Security Policy Advisor to the Federal Chancellor of the Federal Republic of Germany, Berlin |
| 1998 | German Ambassador to the Czech Republic, Prague |
| 1996 - 1997 | Principal Deputy High Representative, Sarajevo |
| 1994 - 1995 | Head of the Special Task Force for Peace Efforts in Bosnia and Herzegovina, Federal Foreign Office, Bonn German Member of the International Contact Group |
| 1992 – 1994 | Head of Section, Coordination of Multilateral Peace Efforts, Federal Foreign Office |
| 1991 - 1992 | Head of the Office for German Humanitarian Aid, Zagreb |
| 1989 - 1991 | Head of the Press and Political section, German Embassy, Prague |
| 1986 - 1989 | Political desk (Security Council), Permanent Mission of Germany to the United Nations, New York |
| 1983 - 1986 | Desk officer, International Law Division, Federal Foreign Office, Bonn |
| 1983 | Second Secretary, Economic Cooperation, German Embassy, Kinshasa |
| 1981 | Entry German Foreign Service (examination with distinction), Bonn Second State Law Examination (bar examination with distinction), Munich |
| 1978 - 1981 | Practical legal training; junior lecturer on international law, University of Munich |
| 1977 | First State Law Examination (with distinction), Munich |
| 1971 - 1977 | Law Studies in Munich and Paris |