Chief, Committee(s) Serv, Reports & Rch Section, Outer Space Affairs Division, Department of Political and Security Council Affairs, United Nations since 1990. Secretary, Science(s) & Tech Committee(s), United Nations Conference on International Coop in Peaceful Uses of Nuclear Energy, Geneva, 1987. Tech Special, Outer Space Affairs Division, United Nations, New York, 1983-1990.
Tech Editor, UNISPACE 82 Conference, New York, 1981-1982. Deputy Director, Regional Remote Sensing Center, Canadian International Development Agency, Burkina Faso, 1977-1980. Tech Special, Outer Space Affairs Division, United Nations, New York, 1974-1977.
Tech Analyst, Canada Centre for Remote Sensing, Department of Engergy, Mines & Resources, 1970-1974.