S. Nanthini is an Associate Research Fellow in the Humanitarian Assistance and Disaster Relief (HADR) Programme at the Centre of Non-Traditional Security Studies (NTS Centre) , S. Rajaratnam School of International Studies (RSIS) , Nanyang Technological University (NTU) , Singapore. She holds a Masters in International Relations (International Security) from the University of Melbourne, and a Bachelor of Arts (Politics and Gender Studies) from La Trobe University
In 2023, Nanthini was recognised and appointed as a Pacific Forum Young Leader. She is also a member of the Australian Institute of International Affairs (AIIA) Indo-Pacific Cooperation Network.
Her research interests include HADR, climate security and the gender and security in the Southeast Asian humanitarian landscape.