Coord, Environmental Management & Chief of Terrestrial Ecosystems Branch, Office(s) of Environment Program, United Nations Environment Programme since 1989. Executive Secretary, National Commission on the Environment, Panama, 1983-1989. Assistant Professor, Latin American & Mexican-American Studies, California State University, Los Angeles, United States of America, 1978-1980, 1971-1975.
Environmental Planner, Department of Regional Planning, Ministry of Planning & Pol Economic, Panama, 1976-1977. Instructor, Social Science Department, Los Angeles City College, 1969-1971.