Nunung has worked in medical research for 18 years. Her research was mainly carried out in numerous bacterial studies in Indonesia when she worked in Bacterial Disease Program at the US-military international biomedical research laboratory in Jakarta.

She received several awards for her significant contribution to establishing an Infectious Disease Laboratory in Aceh, Indonesia, and medical technology transfers affiliated with the Indonesian Ministry of Health. She has expertise in molecular diagnostics using real-time PCR and Luminex methods.