| | Diplom-Studium der Raum- und Stadtplanung an der TU Wien |
| 1961 | Nach Absolvierung der Theresianischen Militärakademie in Wiener Neustadt als Leutnant der Pioniertruppe ausgemustert. Ausbildungsoffizier und später Kompaniekommandant bei verschiedenen Pioniereinheiten |
| 1966 | -69 Absolvierung des Generalstabskurses an der Landesverteidigungsakademie in Wien |
| | Ab 1969 Stabsoffizier im Bundesministerium für Landesverteidigung (BMLV) |
| 1974 | Bataillonskommandant einer Panzergrenadierbrigade |
| 1975 | wieder ins BMLV berufen |
| 1977 | -78 Chief Operations Officer der United Nation Force in Zypern (UNVICYP) und Kommandant des Österreichkontingents |
| | nach Sept. 1978 Stellvertretender Leiter der Generalstabsabteilung im BMLV |
| | April 1979 Chief Staff der United Nations Disengagement and Observer Force (UNDOF) in Damaskus |
| | Dez. 1979 Ernennung zum Force-Commander der UNDOF und Beförderung zum Generalmajor |
| | März1981 Übernahme des Kommandos der UNFICYP |
| | April 1989 Österreichischer Verteidigungsattaché in der Schweiz |
| | April 1989 Chief Military Observer der United Nations Irak-Kuwait Observer Mission (UNIKOM) |
| | Juli 1992 Leiter der Generalstabsgruppe C (Militärpolitik und Sicherheitskooperation) im BMLV |
| 1993 | -94 Leiter einer Sonderuntersuchungskommission betreffend die United Nations Protection Force in the Former Yugoslavia (UNPROFOR) |
| 2000 | -02 Österreichischer Militärrepräsentant bei der EU, Militärrepräsentant bei der NATO/EAPC und Militärdelegierter bei der WEU in Brüssel |
| seit 2003 | im Ruhestand |
| 1982 | Cand. scient. pol. (MA) in political science, Aarhus University, Denmark |
| 1982 | -85 Deputy Head of Section (1982-83) and Head of Section (1983-85) Department of Development Aid (DANIDA), Department of Political Affairs, Ministry of Foreign Affairs, Copenhagen |
| 1985 | -87 Deputy Director, Private Office of the Secretary General of NATO (Lord Carrington), NATO Headquarters, Brussels |
| 1987 | -88 Secretary of Embassy, responsible for relations with the European Parliament, including during the Danish Presidency (1987), Danish Representation to the European Communities, Brussels |
| 1988 | -91 Private Secretary to the Prime Minister of Denmark, Copenhagen |
| 1992 | Head of Section, Department for Central and Eastern Europe, responsible for political affairs, especially ex-Yugoslavia, Ministry of Foreign Affairs, Copenhagen |
| 1992 | -97 Counsellor, responsible for press relations, including during the Danish Presidency (1992-93), CFSP Counsellor (1993-96), ANTICI Counsellor (1996-97), Permanent Representation of Denmark to the European Communities/Union, Brussels |
| 1997 | -99 Head of Department, responsible for Denmark's relations with the European Union in general, Ministry of Foreign Affairs, Copenhagen |
| 1999-2001 | Head of Task Force SITCEN/Crisis Cell, Policy Unit, General Secretariat of the Council of the European Union, Brussels |
| since 2001 | Director, DG E IX - Civilian Crisis Management, DG E, General Secretariat of the Council of the European Union, Brussels |
| 1977-1978 | Postgraduate-Studies, College of Europe, Bruges |
| 1978 | Diploma of The Hague Academy of International Law, The Hague |
| 1979 | Joined the Austrian Diplomatic Service |
| 1982-1986 | Austrian Mission to the European Communities, Brussels |
| 1986-1990 | Austrian Embassy, Moscow |
| 1991-1993 | Private Office of the Austrian Foreign Minister, Vienna |
| 1993-1995 | Deputy Head of Cabinet of Foreign Ministers Mock and Schüssel, Vienna |
| 1995-1999 | Director for Security Policy and Policy Planning, Austrian Foreign Ministry, Vienna |
| 1996-1999 | Deputy Political Director, Austrian Foreign Ministry, Vienna |
| 1999-2003 | Ambassador of Austria to Belgium and Head of the Austrian Mission to NATO, Brussels |
| 2002-2004 | Special Representative of the Austrian Foreign Minister for the Western Balkans |
| 2003-2004 | Representative of the Federal Chancellor of Austria in the Commission on the Reform of the Austrian Armed Forces, Vienna |
| 2003-2008 | Political Director (Director General for Political Affairs) of the Austrian Foreign Ministry, Vienna |
| 2008-2011 | Permanent Representative of Austria to the United Nations, New York |
| 2009-2010 | Also represented Austria on the United Nations Security Council, New York (President of the Security Council in November 2009) |
| 2011 | Vice-President of the 66th General Assembly of the UN, New York |
| 2011-2015 | Ambassador, (Head of the Delegation) of the European Union to the United Nations, New York |
| since 2015 | Managing Director for Europe and Central Asia, European External Action Service, Brussels |
| | Visiting Professor, College of Europe, Bruges and Natolin |
| 1972-1973 | Fulbright scholarship, University of Southern California, L.A., USA |
| 1977-1983 | Adviser, Press Secretary of the Austrian Federal Chancellor Bruno Kreisky |
| 1983-1984 | Austrian Mission to OECD, Paris |
| 1984-1992 | Head of Austrian Press and Information Service, New York |
| 1992-1994 | Head of the Department for Multilateral Economic Co-operation, Ministry of Foreign Affairs, Vienna |
| 1994 | Head of Department for Information on European Affairs in the Federal Chancellery (supervised the Federal Government's information campaign on Austria's accession to the European Union) |
| 1995-1997 | Head of Department for International Relations of the City of Vienna |
| 1997-1999 | Austrian Ambassador to the Federal Republic of Yugoslavia |
| 1998-1999 | European Union Special Envoy for Kosovo |
| 1999 | EU Chief Negotiator at the Kosovo peace talks in Rambouillet and Paris |
| 1999-2002 | High Representative of the International Community for Bosnia and Herzegovina |
| 2002-2008 | Ambassador, Permanent Representative of Austria to the UN and other International Organizations, WTO and the Conference on Disarmament, Geneva |
| since 2008 | Ambassador, Permanent Representative of Austria to the OECD, Paris |
| 1970 | -72 Universitätsassistent am Institut für Völkerrecht und internationale Beziehungen, Universität Linz; Lehrbeauftragter Völkerrecht und internationale Beziehungen |
| 1972 | -74 Diplomatische Akademie Wien |
| 1974 | Eintritt in das Bundesministerium für auswärtige Angelegenheiten (Völkerrechtsbüro) |
| 1985 | Kabinettchef |
| 1987 | Leiter der Ostabteilung |
| 1990 | Leiter der Politischen Sektion (Politischer Direktor) |
| 1993 | Ständiger Vertreter Österreichs bei den Vereinten Nationen (Botschafter), New York |
| seit 1993 | Vorstandsmitglied der International Peace Academy |
| 1995 | Ko-Vorsitzender der Arbeitsgruppe zur Finanzlage der Vereinten Nationen |
| 1998 | Vertreter der österreichischen EU-Präsidentschaft bei den VN New York |
| 1999 | Ko-Vorsitzender der GV-Arbeitsgruppe zur Entwicklungsfinanzierung |
| seit 1999 | Direktor der Diplomatischen Akademie Wien |
| 2000 | /01 Sonderbotschafter für Restitutionsfragen |
