Matt Welsh is an Associate Professor of Computer Science at Harvard University, where he has been on the faculty since 2003. His research interests span many aspects of distributed systems, operating systems, and programming languages. His current focus is on wireless sensor networks including new OS and language designs to enable efficient, high-data-rate applications. Prior to joining Harvard, he spent one year at Intel Research, Berkeley. He completed his Ph.D. at UC Berkeley and his B.S. at Cornell University.