Khalil Hamdani served 29 years with the United Nations as:
Director, Division on Investment, Technology and Enterprise Development, United Nations Conference on Trade and Development (UNCTAD), 2006-2007.
Deputy Director, Division on Investment, Technology and Enterprise Development, UNCTAD, 1998-2006.
Chief, Investment Policy Reviews, Division on Investment, Technology and Enterprise Development, UNCTAD, 1993-1998.
Chief, Office of the Executive Director, United Nations Centre on Transnational Corporations (UNCTC), 1988-1992.
Special Assistant to the Assistant-Secretary-General for Development Research and Policy Analysis, Department of International Economic and Social Affairs (DIESA), UN, 1987.
Special Assistant to the Under-Secretary-General, DIESA, UN, 1982-1986.
Research Associate, United Nations Institute for Training and Research (UNITAR), 1980-1982.
Consultant to the Executive Director, United Nations Fund for Population Activities (UNFPA) 1979-1980.
Assistant Co-ordinator, Inter-regional Projects Branch, Department of Technical Co-operation for Development, UN, 1978-1979.
Deputy Director, Division on Investment, Technology and Enterprise Development, UNCTAD, 1998-2006.