Melissa is a research fellow on climate policy, with research experience in national climate governance, international climate policy including the UNFCCC process and Paris Agreement. Concurrently, Melissa is a PhD student at the National University of Singapore's Department of Geography from January 2020.

She is an environmental advocate running book swaps to encourage recycling and reading and is currently serving on the Climate Action Singapore Alliance, Speak Good English Movement Steering Committee, National Youth Council member, and one of three Chief Curators for National Youth Council's Young ChangeMaker Grant Programme. Member of INSPIRIT, a National Youth Council young professionals group.