||Chief of Hand Surgery Department at Singapore General Hospital (1988-2003).
Member of Hand Expert Group, AO Technical Commission (1999-2004).
Chairman of Specialist Training Committee in Hand Surgery (2005-2006).
Member of Arbitration committee, Workmen compensation, MOM.
Currently the Senior Consultant Hand Surgeon of Hand Surgery Section, Tan Tock Seng Hospital.
Clinical Assoc. Professor, Yong Loo Lin School of Medicine, NUS.
Visiting Consultant to KK Women & Children Hospital.
Visiting Consultant to Hand Surgery at Singapore General Hospital.
Anatomy tutor to Department of Anatomy, Yong Loo Lin School of Medicine, NUS.