Director, Session, Council, Trade & Development Division, General Agreement on Tariffs and Trade. Minister, Brazilian Embassy, Vienna. Deputy Gov for Brazil, International Atomic Energy Agency, Vienna, 1980-1981.
Counsil, Brazilian Representative to General Agreement on Tariffs and Trade, Geneva, 1975-1979. Deputy Director, Trade Policy Division, Ministry of Foreign Affairs, Brazil, 1972-1975. Alternate Brazilian Representative to United Nations Conference on Trade and Development, Economic and Social Council, United Nations General Assembly, 1965-1972.
Secretary of Embassy of Brazil, Mexico, 1970 72.