His first post-doctoral appointment was at the University of Melbourne where he investigated the role of the plasminogen activating system in rheumatoid arthritis. In 1986, he was invited to Lausanne, Switzerland where he extended his interest in the field of plasminogen activation and fibrinolysis. In 1993, he returned to Australia and was awarded a R.D Wright Fellowship at Monash University. He was elected as Chairman of the International Society on Fibrinolysis and Proteolysis in 2004 and again in 2006. He is a current Associate Editor of the Journal of Thrombosis and Haemostasis and on the Editorial Board of the Journal of Biological Chemistry.