Governor of Macau
From 1990 to 1999 he became a freelance civil engineer. Between 1992 and 1999, he was a member of the Legislative Assembly of Macau, being appointed by the Governor of Macau. He was also a member of the Drafting Committee of the Basic Law of Macau, a member of the Preparatory Committee of the Macau Special Administrative Region, and a member of the Portuguese delegation of the Sino-Portuguese Land Group.