Peter Key went to St John's College received the BA degree in Mathematics from Oxford University in 1978, and an MSc (from UCL) and PhD from London University in 1979 and 1985, both in Statistics. From 1979 to 1982 he was a Research Assistant in the Statistics and Computer Science department of Royal Holloway College, London University
He joined BT Labs in 1982, working in the field of Teletraffic Engineering and Performance Evaluation, where he was involved with the development and introduction of DAR (Dynamic Alternative Routing) into BT’s trunk network. At BT he led a mathematical services group, and 1992 ventured in to ATM to lead performance group. In 1995 he led a Performance Engineering team and then managed the Network Transport area.
He joined Microsoft Research's European Research Centre in Cambridge, U.K., in 1998 where he is a Principal Researcher, co-leading the Systems and Networking area. His current research is on multipath routing in wired and wireless networks, home networking, and the economics of networks and of ad-auctions. His other research interests include Distributed Control, Application Performance, Quality of Service and Stochastic Networks.
He is a Visiting Fellow at the Statistical Laboratory, Cambridge, and a Fellow of the ACM (FACM), Fellow of the IEEE (FIEEE) , Fellow of the Institution of Engineering and Technology (FIET) and Fellow of the Institute of Mathematics and its applications (FIMA). In 1999 he was Technical co-chair of the 16th International Teletraffic Congress (ITC) , Program co-chair for Sigmetrics 2006 and Program co-chair of CoNEXT 2011.