David Mazieres is associate professor of computer science (and, by courtesy, of electrical engineering) at Stanford University. His research interests center around computer systems and security. With his collaborators, he has produced a number of distributed storage systems, including SFS, a secure, global file system with decentralized control, LBFS, a file system for low-bandwidth networks, SUNDR, a file system that stores data on untrusted servers, and Shark, a distributed file system in which mutually distrustful clients cooperate to reduce load on servers. He has also worked on Kademlia, a peer-to-peer indexing algorithm, Coral, a widely-used peer-to-peer content distribution network, the xok "exokernel" and Asbestos operating system, and various anti-censorship, privacy-enhancing, and anti-spam systems. Today he works on HiStar, an operating system designed to facilitate construction of secure systems from untrusted code. Prof. Mazieres was a late-night rock DJ at a Boston radio station until 1995, then went on to receive a PhD from MIT in 2000. He subsequently joined the faculty of New York University's computer science department before finally moving to Stanford in September 2005. Prof. Mazieres received an NSF career award in 2001 and a Sloan fellowship in 2002.