I studied Chemistry at Oxford, but my research field is on the Theoretical Chemistry/Physics border. I use computers to model the properties of matter at the microscopic (molecular) level.

My first permanent position was in Physics here at Bristol. During my career I also spent time at Warwick University, where I was the founding Director of the Centre for Scientific Computing. This reflected my interest in the wider use of high performance computers to model reality. I am also known for my interest in education, particular in postgraduate training in the field of computer simulation.

In 2014 I retired, and returned to Bristol, where I maintain connections with several research groups.