Ambassador, Permanent Representative of Netherlands, Geneva, Mission of the Netherlands to the United Nations since 1989. Ambassador to Kenya, Uganda & Somalia & Permanent Representative to United Nations Environment Programme & United Nations Centre for Human Settlements, Nairobi, 1985-1989. Ambassador, Inspector of Netherlands Foreign Service, Ministry of Foreign Affairs, 1982-1985.
Minister, Deputy Chief of Mission, Netherlands Mission to United Nations, New York, 7882. Minister, Deputy Chief of Mission, Netherlands Embassy, Indonesia, 1975-1978. Head of Economic United Nations Affairs Office, Foreign Ministry, Netherlands, 1972-1978.
Counsil of Embassy & Cons-General for Chile, Santiago, 1969-1972. First Secretary, Netherlands Mission to the United Nations, New York, 1963-1969. Second Secretary, Netherlands Embassy, Paris, 1959-1963.