Stephen is an Emeritus Professor at the University of Sydney and Director of the Inside Out Institute and Lead Researcher. He is the founding co-editor in chief of the Journal of Eating Disorders, a member of the Steering Committee of the National Collaboration of Eating Disorders and a member of the Commonwealth Department of Health’s Technical Advisory Committee for Eating Disorders.

He has been the recipient of numerous research grants and has been extensively published in the discipline of eating disorders.