Dr Wong Pak Seng is a Fellow of the Royal College of Obstetricians & Gynaecologists (RCOG) and has a Fellowship in Infertility and Reproductive Medicine from the London Fertility Centre, UK.

Upon his return from UK in 2003, he has worked in several IVF centres before founding Sunfert International in 2009 from ground-up. Sunfert International is currently a leading fertility group in Malaysia, performing over 1500 IVF cycles annually in its 5 centres. His current interest is in embryo selection, mild stimulation and pre-implantation genetic testing.