Assistant Executive Director, Office(s) of Policy Planning, United Nations Environment Programme since 1991. Regional Director, Regional Office for West Asia, United Nations Environment Programme, Bahrain, 1983-1991. Chief of Cabinet, Office of the Executive Director, 1979-1983, Acting Director, Finance & Tech Division, HABITAT Foundation, Nairobi, 1977-1979, Chief, Policy Planning Office, HABITAT Foundation, 1975-1977.
Senior Programme Officer, United Nations Environment Programme, New York, 1973-1975. Policy Planning Officer, Office of Tech Coop, United Nations, New York, 1971-1973. Diplomat, Ministry of Foreign Affairs, Sudan, 1963-1971.
Lecturer, Khartoum Tech Institute, Sudan, 1962-1963.