Gamini is managing the UNEP/GEF Project on Continuing Regional Support for the POPs Global Monitoring Plan under the Stockholm Convention. Before joining the Chemicals and Health Branch, he was a programme officer at the Scientific Support Branch of Secretariat of the Basel, Rotterdam and Stockholm Conventions for nearly 10 years leading the implementation of scientific support programmes on POPs pesticides under the Stockholm Convention and industrial chemicals under the Rotterdam Convention. Gamini has also been supporting of the scientific work of POPs Review Committee (POPRC) of the Stockholm Convention, and Chemical Review Committee (CRC) of the Rotterdam Convention.
Gamini comes with over two decades of experience at national level in sound management of pesticides. He has been involved in establishing the pesticide management infrastructure of Sri Lanka and led its implementation for over 15 years as the Registrar of Pesticides to significantly reduce pesticide related problems in the country. He has also been actively involved in research related to pesticide management and teaching on chemical toxicology. His academic expertise is in the field of eco-toxicological chemistry.