| 1980 | Dr. iur. Johannes Kepler University Linz |
| 1998 | Ph.D. in International Relations, The Graduate Institute of International Studies, University of Geneva |
| 1979-1980 | OLT d.Res., Special Assistant to the Commander, Austrian National Defense Academy, Vienna |
| 1981-1982 | Assistant to Professor Dusan Sidjanski, Department of Political Science, University of Geneva |
| 1981-1984 | Temporary Collaborator, ORF-Austrian Broadcasting Corporation , Studio at the United Nations, Geneva |
| 1982-1985 | Senior Research Assistant to Professor Curt Gasteyger, The Graduate Institute of International Studies, Geneva |
| 1985 | Visiting Scholar, The Fletcher School of Law and Diplomacy, Tufts University, Medford, MA |
| 1985-1987 | Research Fellow, Center for Science and International Affairs, Kennedy School of Government, Harvard University, Cambridge, MA |
| 1986-1987 | Nonresident Tutor at Eliot House, Harvard College, Cambridge, MA |
| 1987-1989 | Visiting Fellow, Center of International Studies, Princeton University, Princeton, NJ |
| 1989 | Founding Chair, Liechtenstein Colloquium, LCM - A private diplomacy forum |
| 1988-1991 | Lecturer in Politics, Department of Politics, Princeton University, Princeton, NJ |
| 1989-1992 | Member, "Working Group Europe 1992," The Council on Foreign Relations, New York |
| 1991-1998 | Member, Team Europe of the Commission of the European Union, Washington, D.C. |
| since 1992 | Instructor in Politics and International Affairs, Woodrow Wilson School of Public and International Affairs, Princeton University, Princeton, NJ |
| 1995-2000 | Founder, Liechtenstein Research Program on Self-Determination at Princeton University, LRPSD |
| since 2000 | Founding Director, Liechtenstein Institute on Self-Determination at Princeton University, LISD, Princeton, NJ |
| 1992-1995 | Visiting Professor, SAIS - The Paul H. Nitze School of Advanced International Studies, Bologna |
| 2000-2004 | Former Special Advisor to Pascal Lamy, E.U. Trade Commissioner for Trade |
| 2003-2004 | Visiting Professor, University of Geneva |
| 2004 | Visiting Professor, University of Montreal |
| 2005 | Founder of Telos |
| 2004-2008 | Visiting Professor, Collège d'Europe, Bruges |
| 2007 | Visiting Scholar, University of Michigan, Ann Arbor |
| 2007-2008 | Member of the French Commission on the White Paper on Foreign Policy and European Affairs |
| 2009 | Visiting Scholar, Northwestern University |
| 2010-2011 | Visiting Professor, Luiss - Libera Università Internazionale degli Studi Sociali Guido Carli, Rome |
| 2013-2014 | Visiting Professor, Luiss - Libera Università Internazionale degli Studi Sociali Guido Carli, Rome |
| since 2011 | Visiting Professor, EGE - Ecole de Gouvernance et d'Economie, Rabat |
| 1977 | Law Studies in Vienna (Dr. iur.) |
| 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 |
