Research assistant Bureau Science, Manila, 1938-1939. Chief chemist United Dairies, Inc., Manila, 1939-1941, La Tondena Distillery, Manila, 1945-1947. Member faculty Avaneta Institute Agriculture, Manila, 1947-1949.
Research chemist Ramie Development corporation, Manila, 1949-1953. Chief research and development Philippine Packing Corporation, Manila, 1954-1957. Senior vice president, general manager Ramie Textiles, Inc., Manila, since 1957, also director.
Chairman advisory committee to Philippine Textile Research Institute, Manila, 1978-1981. School chairman Namfrel, Valenzuela, Philippines, 1984. Member executive Boy Scouts of Philippines, Valenzuela chapter, 1976-1978.
Vice president, adviser Chamber of Commerce and Industry of Valenzuela, 1974-1977. Research and development processes ramie fiber contributed to industry growth in Philippines.