Director-General, Universal Postal Union since 1985. Head of Brazilian Delegation, 19th Universal Postal Union Congress, Consultative & Executive Council, Postal Union of the Americas & Spain, 1982-1984. Chairman, Universal Postal Union Executive Council, 1979-1984.
Chairman, 18th Universal Postal Union Congress, 1979. President, Brazilian Telegraph & Post Office(s) Enterprise, Brasilia, 1974-1984. Regional Director, Brazilian Telegraph & Post Office(s) Enterprise, S£o Paulo, 1972-1974.
Director of Industry, S£o Paulo & Curitiba, 1955-1964. Chief Engineer(s), Railway Construction, S Brazil, 1952-1954.