- Consultant.
- OAB/RJ 8.275.
- Senior Professor of Administrative Law at Cândido Mendes University/RJ.
- Obtained his doctorate from the University of Brazil (1960).
- Attorney General for the State of Guanabara (1971-1973).
- Secretary of the Inter-American Economic and Social Council - CIES - and Executive Secretary for Economic and Social Issues of the Organization of Americans States - OEA - (1979-1984).
- Member of the Consultoria-Geral da República (Brazilian Public Advisory Board) (1986).
- Professor Emeritus at the Escola de Comando e Estado-Maior do Exército (Brazilian Army Command and Staff School) in 1989.
- Member of the Technical Council of the National Commerce Confederation.
- Guest lecturer at the European Center of Public law.
- Arbitrator for the International Chamber of Commerce (ICC - PARIS and LONDON).
- Member of the Association Française des Constitutionalistes (French Association of Constitutionalists).
- Member of the International Academy of Law and Economy.
- Honorary Vice President and founder of the International Institute of Public Law Studies - IIEDE.
- Member of the Academia Nacional de Derecho y Ciencias Sociales (National Academy of Law and Social Sciences) - Buenos Aires, Argentina.

For more information, access his resume available in the Lattes archives (CNPq): http://lattes.cnpq.br/7595813844779337.