Dr Kong received her medical degree from Jefferson Medical College, Thomas Jefferson University in Philadelphia, USA in 2005. She completed her General Pediatrics residency in Lucile Packard Children's Hospital, Stanford University, California, USA in 2008. She further completed her fellowship in neonatal-perinatal medicine in University of California, San Diego, USA where she was chief fellow in 2010-2011. She is board certified in General Pediatrics with sub-board certification in Neonatal-perinatal Medicine by the American Board of Pediatrics. She had designed, completed and published a randomized controlled trial on using end-tidal carbon dioxide monitoring in the delivery room to prevent hypo/hypercapnia in newborn infants. She also spent time in underserved areas of Africa (Uganda) and South East Asia (Myanmar), providing neonatal intensive care and teaching trainees as part of the Helping Babies Breathe program.

She is currently a Senior Consultant in the Department of Neonatology, KK Women's & Children's Hospital where she continues her interests in research especially in neonatal resuscitation and in the teaching of medical students and junior trainees.