Jeffrey Post is an Infectious Diseases physician and has appointments at the Prince of Wales Private Hospital and the Prince of Wales Hospital, where he is a senior staff specialist. He has private consulting rooms in Suite 20.

He has undertaken PhD studies in hepatitis C virus infection. He is involved in medical education and is currently the Director of Physician Education at Prince of Wales Hospital. He is currently the chair of the Australian Antiretroviral Guidelines Panel, a group that develop Australian treatment guidelines for HIV infection. He is also involved in training of general practitioners in HIV treatments.