1973-78 B.A. and M.A. in Political Science, specialized on Vietnam, Indochina and SEA
Moscow State Institute of International Relations, Moscow, USSR
1979 M.A. in International Economics, Budapest University of Economics
1984 to 1986 Post-Graduate Diploma in Aesthetics and Philosophy, Budapest Education Centre
1994 to 1995 Diploma, Executive Education Program, Fulbright Fellowship
Princeton University, Princeton, NJ/USA
1998 to the 2001 Ph. D. Program in Archaeology Remote sensing, GIS & Cultural Resource Management, Eötvös Loránd University, Budapest, Hungary
Since September 2010 – Rector of Dharma Gate Buddhist College (DGBC), Hungary
March 2009 to May 2010 – Chief Executive Officer, Hungarian Indochina Company Ltd.
Zelnik István Southeast Asian Gold Museum Budapest, Hungary
May 2000 to September 2010 – Director, Southeast Asia Center
Eötvös Lorand University (ELTE), Budapest/Hungary
Lectures: History & civilization of SEA, Vietnamese language
September 2005 to present – Lecturer, History of Buddhism in SEA
Dharma Gate Buddhist College (DGBC), Budapest/Hungary
May 2004 to March 2009 – Chief Executive Officer, JelNet Consulting Ltd., Hungary
August 2002 to May 2004 – General Director, Assistant State Secretariat of Information Society Programmes. In charge of national and EU grant programmes
Ministry of Informatics & Telecommunication, Budapest, Hungary
July 1998 to July 2002 – Department of Culture, Science and Information
In charge of UNESCO, EU, Visegrád countries and other multilateral organizations
Ministry of Foreign Affairs, Budapest/Hungary
March 1996 to July 1998 – Ambassador, Accredited to Cambodia ? Laos
Embassy of the Republic of Hungary, Hanoi, Vietnam
July 1995 to August 1996 – Member of the Cabinet of the State Secretary
Ministry of Foreign Affairs, Budapest, Hungary
August 1994 to July 1995 – Senior Executive Fellow, Fulbright Fellowship, Woodrow Wilson School, Princeton University, Princeton, NJ/USA
August 1993 to July 1994 – Senior Strategic Analyst, Department of Planning Analysis ? Information. Ministry of Foreign Affairs, Budapest, Hungary
July 1992 to July 1993 – Deputy-Director of the Civil Administration
United Nation Transitional Authority in Cambodia, Siem Reap
May 1988 to July 1992 – Alternate Permanent Representative, Deputy-Head of Mission
Permanent Mission of the Republic of Hungary to the United Nations, Vienna/Austria
November 1984 to April 1988 – Senior Desk Officer, in charge of multilateral disarmament
Ministry of Foreign Affairs, Budapest/Hungary
November 1983 to February 1984 – Research Fellow, studying Confidence Building Measures, Institute of East-West Security Studies, New York, NY/USA
February 1983 to February 1984 – Research Fellow, East ? South-East Asian countries
Institute of International Relations, MFA, Budapest/Hungary
January 1980 to January 1983 – Press& Cultural Attaché, in charge of cultural, scientific and media relations, Embassy of Hungary, Hanoi/Vietnam
November, 1978 to September, 1979 – Translator, HQ of the Chief of Staff Military trade relations with Indochina, Ministry of Defense, Budapest/Hungary
1992 to present – Chairman of the Board of Trustees
Royal Angkor Foundation, Budapest, Hungary
2004 to present – Secretary of the Board of Trustees
Dhammadipa Foundation, Budapest, Hungary
Jelen, J – Hubert, J-F – Sembery, G – Sembery, L, Asian Gold Masks, Volume 1, Magyar Indokína Társaság Ltd, Budapest, 2009.
Fajcsák, Gy – Nguyễn Đinh Chiến – Jelen, J, The Cà Mau Shipwreck Porcelain, Volume 1, JelNet Ltd, Budapest, 2009
Jelen, J – Hubert, J-F – Schweyer, A-V, – Ngô Văn Doanh – Cao Xuân Phổ, Gold Treasures of the Cham Kingdoms, Volume 2, JelNet Ltd, Budapest, 2008
Jelen, J – Renner, Zs – Vũ Kim Lộc, Gold Treasures of the Cham Kingdoms, Volume 1, JelNet Ltd, Budapest, 2007
Jelen, J – Hegyi, G.: Angkor and the Khmers, Hegyi Publishing House, Budapest, 1991
Jelen, J, Hungarian archaeological sites on the World Heritage List (in: Hungarian Archaeology at the turn of the millennium, Ministry of National Cultural Heritage, Teleki László Foundation, Budapest, 2003)
Jelen, J. & Stubbs, J (eds), Radar Imaging Survey of the Angkor eco-site (Report of the First Scientific Roundtable), WMF & RAF, New York, March 1995.
Jelen, J. & Stubbs, J. (eds), Workshop on Radar Imaging and Cultural Resource Management at the Angkor eco-site (Report of the Second Scientific Roundtable), Gainsville, April 1996