Dr Whittle is a senior consultant rheumatologist at the Queen Elizabeth Hospital in Adelaide, South Australia, a senior lecturer at the University of Adelaide and an adjunct senior research fellow at Monash University. He is currently an ANZMUSC Practitioner Fellow, researching living evidence, and has helped to lead the development of the Australian Living Guidelines for Adult Inflammatory Arthritis and Juvenile Idiopathic Arthritis (www.livingguidelines.org). He completed his term as President of the Australian Rheumatology Association in May 2026. He is also a member of the Executive Committee of the Australia & New Zealand Musculoskeletal Clinical Trials Network (ANZMUSC) and the Editor-in-Chief of the Australian Rheumatology Journal.