Tim was born in the UK but has spent around half his life overseas. He trained in Emergency Medicine and Intensive care medicine in Australia. He has 15 years experience in prehospital care in Australia (Victoria and Sydney Lifesaver) and UK (London HEMS and East Anglia Air Ambulance). His clinical career has been based around major trauma centres in Australia and the UK. He has worked in 43 hospitals in 11 countries and mixed training with travel for volunteer work in Africa, India and Samoa.

Tim has worked at Barts Health for 16 years and was appointed Professor Emergency Medicine at QMUL and BH in 2012. In 2018 he moved to Hamad Medical Corporation, Doha, Qatar; one of the largest EDs in the world seeing 1800 patients each day. He is deputy chair and lead for academic affairs.

He divides his academic time between teaching and research. His main interests are resuscitation, ultrasound, airway, point of care testing and education. His research time is focussed facilitating and recruiting to large multicentre studies. He has published around 100 papers. His current main focus is leading the QMUL Emergency & Resuscitation MSc. He supervises the academic trainees and academic students in their research programs and runs the undergraduate and some of the post-graduate teaching programs for QMUL.