After training as a doctor at Charing Cross and Westminster Medical School (part of the University of London) Tom worked as a physician at various NHS hospitals in England. He then trained as a solicitor at the prestigious international law firm, Slaughter and May. Tom has held a global position with Novartis as Senior Legal Counsel and an international position at Gilead Sciences Europe Ltd, as a Director within its international legal department, with responsibility for promotional compliance. He has also acted as a legal consultant to leading global pharmaceutical companies and been a member of Sidley Austin's European life sciences team.