CEO VinFast India – Bangladesh (2023 – Present) 

Ambassador Plenipotentiary and Extraordinary of Socialist Republic of Vietnam to India, Nepal and Bhutan (2018-2022) 

Candidate of Vietnam for the post of UNESCO Director-General in 2017 

Assistant Minister of Foreign Affairs - Special Envoy of the Prime Minister of Vietnam on UNESCO issues (2016 to 2018) 

Vice Chair of Executive board of UNESCO (2014-2016) 

Ambassador of Socialist Republic of Vietnam to the Kingdom of Belgium and Grand Duchy of Luxembourg (2011 – 2014) 

Ambassador, Head of the Vietnamese Delegation to the European Union (2011-2014) 

Secretary General, Vietnam National Commission for UNESCO  (2006 – 2011) 

Vice Chancellor of University of Foreign Affairs (2003 - 2006) 

Youngest person to be appointed as Ambassador and Head of the Permanent Delegation of the Socialist Republic of Vietnam to UNESCO (1999-2003)