Chief Editor, Yearbook of the United Nations, Department of Public Information, United Nations since 1991. Senior Economic Affairs Officer, Economic Affairs Officer, Office(s) of United Nations Commissioner for Namibia, New York, 1980-1991. Assistant Professor, Lecturer, Department of City & Regional Planning, California State Polytechnic University, United States of America, 1979-1980.
Town Planning Officer, Lusaka City Council, Zambia, 1972-1979. Urban Planner, City of San Dimas, California, 1972. Town Planner, Trainee, City Engineer(s) Department, Lusaka City Council, 6572.