Professor Tarassenko gained the degrees of BA in Engineering Science in 1978, and DPhil in Medical Electronics in 1985, both from the University of Oxford. He has been the holder of the Chair in Electrical Engineering at Oxford University since October 1997. His main research interests lie in developing new medical technology for monitoring patients both in and out of hospital. He was awarded the 2006 Silver Medal of the Royal Academy of Engineering for healthcare innovation.
He has been the Director of the Oxford Institute of Biomedical Engineering since 2008, and the Director of the Centre of Excellence in Medical Engineering funded by the Wellcome Trust and EPSRC since 2009. He was made a CBE for services to engineering in the 2012 New Year Honours List.