He has worked with Erlang for commercial products and services off and on since 1999. He was the architect of the replication engine of the Amazon SimpleDB Web service at Amazon.com. He previously worked at Sendmail Inc. and the Jet Propulsion Laboratory. He has a B.A. in Mathematics from St. Olaf College, an M.S. in Mathematics from Claremont Graduate University, and an M.S. in Computer Science from the University of Oregon.