Harun ur Rashid was Bangladesh Ambassador to Nepal (1981-82) Australia (1982-84), Philippines (1984-86) and Permanent Representative /Ambassador to the UN, Geneva (1987-91). He was a Deputy High Commissioner & Chief of Mission (1979-81) in Kolkata,
He served as Additional Foreign Secretary (1986-87) and Director General (1976-79) in Bangladesh Foreign Office.
He participated in a number of summits with Presidents and Prime Ministers of Bangladesh in different countries and in various international organizations. He was one of the architects of the 1977 Ganges Water Agreement with India. In the 70s, he led delegations to the maritime boundary discussions with India and Myanmar (Burma) and represented Bangladesh at the sessions of the UN Law of the Sea Conference in Caracas, Geneva and New York.
He joined the Pakistan Foreign Office in the 60s and in 1969 was on deputation to the UN, New York for several months as a Research Fellow to the Security Council of the UN. He spent sometime at The Hague Academy of International Law.
After completing his Masters degree in 1957, he earned his professional degree of Barrister-at-Law from Lincoln's Inn, London and prior to his joining the Foreign Office, he taught law in Dhaka University and in the Central Law College in the early 60s.
After his retirement, Barrister Rashid has written political commentaries on various aspects of national, regional and global issues. He is a columnist for a leading English- language daily and newsweeklies in Bangladesh.
Among his published books are Peace and Conflict Studies (2005), International Relations and Bangladesh (2004), International Law (2004), Bangladesh-India Relations: Living with a Big Neighbour (2010), Refugee Law (2000) and The Diary of a Diplomat (1999).