Keith is currently the Division Director for the Computer and Network Systems (CNS) Division in the Computer and Information Science and Engineering (CISE) Directorate at the National Science Foundation. He is at NSF on leave from the Computer Science and Engineering Department at the University of California, San Diego. He has been on the UCSD faculty since 1993. He received his Ph.D. in Electrical Engineering from Stanford University in 1984; for his Ph.D. he developed the Xerox Research Internet Clock Synchronization protocol, which was one of the first practical fault-tolerant protocols that addressed this issue. In 1986, he left Xerox and joined the CS Department at Cornell University where with colleagues Ken Birman and Robert Cooper, he started the company ISIS Distributed Systems, which provided middleware for fault tolerant distributed applications; this software was used by financial and investment institutions. He served as a Professor at Large in the Computer Science Department at the University of Tromso from 1999-2003, was Chair of ACM SIGOPS from 2003-2007, and Chair of the CSE Department from 2006-2010. His current research focuses on issues in distributed systems and security. He is a Fellow of the ACM.