1974 :

Joined the Ministry of Foreign Affairs as Third Secretary, South and West Asia Division, Department of Political Affairs

1977 :

Second Secretary, Europe Division, Department of Political Affairs

1978 :

Second Secretary, Royal Thai Embassy, Manila, the Republic of the Philippines

1982 :

First Secretary, Policy and Planning Division, Office of the Permanent Secretary

1984 :

First Secretary, Permanent Mission of Thailand to the United Nations, New York

1986 :

Counsellor, (Economic), Royal Thai Embassy, Washington D.C., U.S.A

1987 :

Director, America Division, Department of Political Affairs

1989 :

Deputy Director-General, Department of Political Affairs

1990 :

Assistant Permanent Secretary, Office of the Permanent Secretary

1991 :

Ambassador Extraordinary and Plenipotentiary of Thailand to the Union of Myanmar

1994 :

Ambassador Extraordinary and Plenipotentiary of Thailand to Canada

1997 :

• Ambassador Attached to the Ministry, Office of the Permanent Secretary
• Director-General, Department of East Asian Affairs

2000 :

• Ambassador, Permanent Representative of Thailand to the United Nations
• Office and other International Organizations in Geneva

2002 :

Deputy Permanent Secretary, Office of the Permanent Secretary

2004 :

• Ambassador Extraordinary and Plenipotentiary of Thailand to the French Republic
• Permanent Representative of Thailand to UNESCO
• Member of the Board of the Development Center, OECD

2006 :

Ambassador Extraordinary and Plenipotentiary of Thailand to the United States of America

April 2007 :

Permanent Secretary, Office of the Permanent Secretary Member, Board of the Electricity Generating Authority of Thailand

2009 :

Ambassador Extraordinary and Plenipotentiary of the Kingdom of Thailand to Japan

2014 :

Member of the National Legislative Assembly and Advisor to the Prime Minister

2015 :

Member of the National Legislative Assembly and Advisor to the Prime Minister and Vice Minister for Foreign Affairs

15 December 2016 :

Deputy Minister of Foreign Affairs

2012 :

The Grand Cordon of the Order of the Rising Sun (Japan)

2003 :

Knight Grand Cordon (Special Class) of the Most Exalted Order of the White Elephant

1999 :

The Chakrabarti Mala Medal

1998 :

Knight Grand Cordon (Special Class) of the Most Noble Order of the Crown of Thailand

1995 :

Knight Grand Cross (First Class) of the Most Exalted Order of the White Elephant

1992 :

Knight Grand Cross (First Class) of the Most Noble Order of the Crown of Thailand

1991 :

Knight Commander (Second Class) of the Most Exalted Order of the White Elephant

1986 :

Knight Commander (Second Class) of the Most Noble Order of the Crown of Thailand

1982 :

Commander (Third Class) of the Most Exalted Order of the White Elephant

1980 :

Commander (Third Class) of the Most Noble Order of the Crown of Thailand