Mr Larsen is a senior career officer with the Department of Foreign Affairs and Trade. He has previously served as Ambassador for People Smuggling Issues; Ambassador to Israel; Counsellor in Brussels; and Second Secretary in Bangkok.
Until September 2013, Mr Larsen was Principal Adviser to the former Minister for Foreign Affairs. He has previously served as Assistant Secretary of the Legal Branch.
Mr Larsen holds Bachelor of Arts and Laws degrees from the University of Melbourne.