| 1993-1994 | Country Officer i/c ASEAN-US dialogue, ASEAN Free-Trade Area, Vietnam and Philippines, Ministry of Foreign Affairs, Singapore |
| 1995-1998 | First Secretary and Deputy Chief of Mission (covering France, Switzerland, Spain, Israel), Embassy of the Republic of Singapore, Paris, France |
| 1999 | Senior Tutor, European Studies Programme (Political Science from July 2001) |
| | Awarded NUS Overseas Graduate Scholarship to pursue Masters and PhD in European Politics/International Relations (on study leave Sep 1999-Dec 2003, Oxford & London) |
| 2001 | Political Science Department, NUS - National University of Singapore |
| 2004 | Assistant Professor, Political Science Department, NUS - National University of Singapore |
| 2006-2010 | Deputy Convenor, International Studies Programme, NUS - National University of Singapore |
| 2008-2009 | Assistant Head, Political Science Department, NUS - National University of Singapore |
| 2012 | Associate Professor, Political Science Department, NUS - National University of Singapore; Director of Studies NUS - National University of Singapore & CAPT - College of Alice and Peter Tan |
| 1978 | Dr. jur., University of Innsbruck |
| 1979 | Diploma in International Relations, Johns Hopkins University, School of Advanced International Studies, Bologna Center |
| 1981 | Research Assistant, UNHCR - United Nations High Commissioner for Refugees, Geneva; Certificate International Court of Justice, Research Session, The Hague |
| 1982-1985 | Austrian Deputy Trade Commissioner for Western Africa, Abidjan |
| 1985-1989 | Austrian Deputy Trade Commissioner for Japan, Tokyo |
| 1985 | Diplôme de Hautes Etudes Internationales, IHEID - The Graduate Institute of International and Development Studies, Geneva |
| 1990-1992 | Counsellor, Economic Affairs, Austrian Permanent Mission to the GATT - General Agreement on Tariffs and Trade, Geneva |
| 1992-1997 | Deputy Director General, Department for European Integration and Trade Policy, Austrian Federal Economic Chamber, Vienna |
| 1995-1998 | Co-Chair (trade) of the Joint Session of Trade and Environment Experts, OECD, Paris |
| 1996 | Panelist of a WTO Dispute Settlement Panel (US/Canada - Split Run Editions) |
| 1997-1998 | Minister-Counsellor, Head of the Industrial and Commercial Affairs Section, Permanent Representation of Austria to the EU, EESC Counsellor - European Economic and Social Committee of the EU, Brussels |
| 1998-2002 | Counsellor, ASEM - Asia-Europe Meeting, European Commission, Directorate-General for External Relations, Brussels |
| 2002-2007 | Minister, Deputy Head of the Delegation of the European Commission to Japan, Tokyo |
| 2005 | Adjunct Professor for International Politics, University of Innsbruck (Dozent f. internationale Politik) |
| 2007-2011 | Ambassador of the European Union to Switzerland and the Principality of Liechtenstein, Bern |
| 2012-2016 | Principal Advisor, Asia-Pacific Department, European External Action Service (EEAS), Brussels |
| since 2017 | Ambassador of the European Union to the Republic of Korea, Seoul |
