Present
Emeritus Professor, Department of Mechanical Engineering, National University of Singapore (NUS)
Chair, Fundamental Engineering Examination Committee, PEB
Trustee, Institution of Engineers Singapore (IES)
Past
Head, Department of Mechanical Engineering, NUS
Vice-Dean, Faculty of Engineering, NUS
Founding Director, BTech Programme, NUS
Deputy Director, Office of Research, NUS
Deputy Executive Director, Institute of Engineering Leadership, NUS
President, Institution of Engineers Singapore (IES)
President, Biomedical Engineering Society Singapore (BES)
Chairman, Academic Council, Singapore Institute of Aerospace Engineers (SIAE)
Member, Professional Engineers Board (PEB)
Member, Engineering Accreditation Board (EAB)
Member, Academic Board, Air Transport Training College (ATTC)