Simon Finfer is a Professorial Fellow in the Critical Care and Trauma Division at The George Institute. He is a practicing critical care physician with an appointment as a Senior Staff Specialist at Royal North Shore Hospital and Director of Intensive Care at the Sydney Adventist Hospital.

Simon is an Adjunct Professor at the University of Sydney Medical School, a past-Chair of the Australian and New Zealand Intensive Care Society (ANZICS) Clinical Trials Group. He is Treasurer and Chair-Elect of the International Sepsis Forum, Treasurer of the Global Sepsis Alliance, and a member of the World Sepsis Day Steering Committee.

Simon is an Editor of The Oxford Textbook of Critical Care (2nd Ed.), the Critical Care Section Editor for The Oxford Textbook of Medicine (6th Ed.), and in 2012-2014 was Critical Care guest editor for The New England Journal of Medicine.