Currently, he is the manager of Asia Pacific Evaluation Association (APEA) working on managing all APEA programmes including implementation of the Asia Pacific Regional strategy in a systematic manner to advance evaluation culture in the region. He is a former Board Member of Sri Lanka Evaluation Association and Co-Founder of EvalYouth Sri Lanka and EvalYouth Asia; and he has worked in Africa, Asia and Americas on evaluation and social research projects.
Randika's research interests are rural livelihoods, gender, agriculture, and education; works with public sector, NGOs, and academia. His expertise is in quantitative and qualitative research methods, participatory evaluation methods, ripple effect mapping, agricultural value chains, project management, stakeholder engagement, survey development and administration, intercultural evaluation, and evaluation capacity building.