Group Director of Paediatrics, National University Health System, Singapore
Head, Khoo Teck Puat-National University Children’s Medical Institute, National University Hospital, National University Health System, Singapore
Head of Department and Professor, Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore
Head of Department and Senior Consultant, Division of Paediatric Endocrinology, Department of Paediatrics, Khoo Teck Puat-National University Children’s Medical Institute, National University Hospital, 
President, Asia Pacific Paediatric Endocrine Society
President, College of Paediatrics and Child Health, Academy of Medicine, Singapore