Dr Tan completed her specialty training in medical microbiology in the United Kingdom and obtained her FRCPath (UK) in 2012. Upon completion of her post-graduate training, she worked as a consultant microbiologist in England before moving to Singapore to continue her career path at Changi General Hospital (CGH). She is currently the Chief of the Department of Laboratory Medicine and a sub-specialty director for microbiology at CGH. She is also chair of the Laboratory Safety Committee at CGH and a member of the Department of Infection Prevention and Control at CGH.