Prior to his appointment as the chief executive officer of the United States Studies Centre at the University of Sydney in 2012, Gill held the post of SIPRI Director, a position he held for five years.
Prior to his appointment at ANU, he was the chief executive officer of the United States Studies Centre at the University of Sydney in 2012. From 2007 to 2012, Gill held the post of SIPRI Director, a position he held for five years.