Notary Public. Professor, Law School of the Universidad de El Salvador, 1950-1959. Justice of the Supreme Court of Justice of El Salvador, 1959-1960. Deputy Minister of Justice, 1962-1965. Deputy Minister of Internal Affairs, 1965-1967. Minister of Internal Affairs, 1967-1969. Member of the Board of Directors, Central Bank of Reserve of El Salvador, 1969-1970. Secretary to the President of El Salvador for Legal Affairs (Chief legal adviser of the Presidency of El Salvador), 1969-1970. Chief Justice of the Supreme Court of El Salvador, 1970-1976. Director of Bufete F.A. Arias and Chief of its Litigation Department, 1976.