1967-71 Architect and town planner in the Planning Dept., Ministry of National Development. Later seconded to the UN Development Programme (Special Fund) Assistance in Urban Renewal & Development Project in Singapore
1971-75 Architect and town planner in private practice
1972-93 Member of Parliament
1975 Senior Minister of State for Communications
1977 Acting Minister of State for Communications
1978 Minister for Communications, concurrently Minister for Culture
1980 Minister for Communications and Labour
1981 Chairman, People’s Action Part
1983-85 Minister without Portfolio
1983-93 Secretary-General, National Trades Union Congress
1985-90 Second Deputy Prime Minister
1990-93 Deputy Prime Minister
1993-99 Elected as the President of the Republic of Singapore
Chancellor, National University of Singapore
Offices held
President, Singapore Institute of Planners
Chairman, Singapore Labour Foundation
Honours
1998 GCMG (Knight Grand Cross, Order of St Michael and St George)