Researcher for the Defense Advanced Research Projects Agency (DARPA) an agency of the government that develops technology for the military. Engineer for SRI International, nonprofit scientific research institute and organization.
Director of the Defense Advanced Research Projects Agency (DARPA) Information Science and Technology Office, an agency of the government that develops technology for the military. University of Southern California professor of software engineering.
Member of Project Mac, a time-sharing systems project funded by the Defense Advanced Research Projects Agency (DARPA), an agency of the government that develops technology for the military.