Dr Alvin Eng is currently Senior Consultant Surgeon in the Department of Upper Gastrointestinal & Bariatric Surgery at the Singapore General Hospital. He is also Assistant Professor with the Duke-NUS Medical School and at the NUS Yong Loo Lin School of Medicine. In addition to lecturing at the Nanyang Polytechnic School of Nursing, he is also involved in teaching as an instructor and lecturer for subspecialty surgical courses. He is also trained in advanced laparoscopic and robotic surgery for upper gastrointestinal and bariatric surgery during his fellowship in Korea and Taiwan.

Dr Alvin Eng is a member of various professional societies including the International Gastric Cancer Associations (IGCA), American Society for Bariatric & Metabolic Surgery (ASMBS), International Federation of Surgery for Metabolic and Obesity Disorders (IFSO), Obesity and Metabolic Surgery Society of Singapore (OMSSS) and the Endoscopic & Laparoscopic Surgeons of Asia (ELSA).

His current research interests are in the field of advanced laparoscopy, bariatric & metabolic surgery and upper gastrointestinal diseases.