In 2004 he was awarded the prestigious International Fellowship by the Agency of Science, Technology and Research (A*STAR), Singapore and funding by the SingHealth Talent Development Funds to pursue a PhD degree at the University of Oxford. His research work, supervised by Professor Val Macaulay, focused on finding new molecular targets to treat patients with advanced kidney cancers. During his time in Oxford, his surgical mentors was Dr Mark Sullivan who specialises in kidney cancer surgery. He obtained his PhD degree from the University of Oxford - DPhil (Oxon) – in 2007. Thereafter, he returned to SGH where he has been working as a senior consultant uro-oncological surgeon. He is one of the principal inventors of the patented robotic prostate biopsy device Mona Lisa® (Biobot Surgical, Singapore), which is currently the state-of-the-art transperineal multi-parametric MRI-targeted prostate biopsy technique for early prostate cancer detection. He received international and regional recognition in the fields of early prostate cancer diagnosis and minimally-invasive surgical techniques (da Vinci robotic and laparoscopic surgery) for treating urological cancers, and research in advanced kidney cancers. He pioneered advanced robotic surgical techniques such as performing robotic-assisted laparoscopic radical prostatectomy (RARP) totally outside the abdominal cavity that allows quick recovery such that patients only requires a short overnight-stay in hospital (ambulatory robotic prostatectomy with extended recovery).