Research engineer Jet Propulsion Laboratory, Pasadena, California, 1962-1965. Research officer Arms Control and Disarmament Agency, Washington, 1965-1966. United States secretary COSPAR National Academy of Sciences, 1966-1968.
Assistant to president, assistant secretary Associate Universities, Inc., 1968-1991, consultant science management, since 1991. Consultant National Aeronautics and Space Administration, Washington, 1968-1970, Lunar Science Institute, Houston, 1970-1973, Super Collider Project, Berkeley, California, 1983-1988. Coordinator United States/Union of the Soviet Socialist Republics Solar Energy Project, National Science Foundation, Washington, 1974-1979.