He has over 25 years experience in investment banking working with many of the largest investment banks, as well as hedge funds and start-ups. Immediately prior to joining Deloitte, he spent 4 years at Intel focusing on modelling, fintech and HFT. His experience spans all areas of trading, risk management and quantitative research. In addition, he is also a visiting professor at Imperial College in computational finance. Stephen holds a PhD in mathematical finance from London University.