Head, Medical Section, Occupational Safety & Health Branch, Working Conditions & Environment Department, International Labor Organization/Office. Occupational Health Special, Working Conditions & Environment Department, International Labour Organization, Geneva, 1974-1982. Inter-Regional Advisor, Occupational Safety & Health Branch, International Labor Organization/Office, Africa/Middle East, 1972-1973.
Regional Special, Beirut Area Office, International Labor Organization/Office, 1969-1972. Chief Medical Officer, Mines of Bou Azzer, Tifnout Tiranimine Company, Morocco, 1969. Medical Inspector of Factories, Province of Li6ge, Ministry of Labour, Belgium, 1965-1968.
General Practitioner, Rotheux, Belgium, 1967-1968. Medical Officer, Emergency Unit, Hopital des Anglais, Li£ge, 1964-1966.