Jason obtained his first degree (Sports and Exercise Science) from Loughborough University, UK. Following the award of G V Sibley Memorial Prize, he stayed on to complete a PhD in Exercise Physiology under the UK Overseas Research Scholarship and Faculty Studentship. 

Jason is a Fellow of the American College of Sports Medicine. Jason serves in various national and international panels related to human performance and safety. His main research interests are in fluid balance, thermoregulation and mitigation strategies for improving human performance, especially in the heat. Knowledge gained from his research has also benefitted other agencies in formulating performance and safety guidelines and policies. 

Jason recently completed his 12-year tenure at the DSO National Laboratories, serving as the Director for the Human Performance Programme in his final appointment. He chairs the Thermal Factors Scientific Committee under the International Commission on Occupational Health. 

He continues to provide consultancy to enhance performance/productivity, wellbeing and health under occupational and sporting settings. He is currently a Research Associate Professor in Yong Loo Lin School of Medicine at the National University of Singapore.