John Tilemann is a former career diplomat with the Department of Foreign Affairs and Trade, and an international civil servant. He is a member of the Asia-Pacific Leadership Network (APLN) and a signatory of the open letter to Prime Minister Anthony Albanese. John's postings included Sri Lanka, Thailand, Pakistan, Poland, to the IAEA (1987-1990), and to the Middle East as Australia’s Ambassador to Jordan 2002-06. John was Chief of Staff to IAEA Director-Generals Hans Blix and Mohamed ElBaradei from 1992-98. John has also had policy roles in Canberra over the last 20 years related to the Non-Proliferation Treaty and arms control.