[2] He is the present Executive Director of the South Asia Foresight Network(SAFN) and a Senior Fellow at the Millennium Project in Washington DC since 2021.

His commentaries on International Relations and Geopolitics are published by Observer Research Foundation New Delhi,[7] London School of Economics[8] and South Asia Journal.

[11] He was the former Executive Director of the Lakshman Kadirgamar Institute of International Relations and Strategic Studies (LKIIRSS) which is a Sri Lankan government foreign policy think tank.

[12][13] Abeyagoonasekera is the only son of Ossie Abeygunasekera, who was the leader of Sri Lanka Mahajana Pakshaya (SLMP), presidential candidate and Member of Parliament from Colombo District.

His primary and secondary education was at S. Thomas' Preparatory School and Ananda College, he gained BSc in computer science and an MBA from the Edith Cowan University.

He is a Fellow of the National Defense University Washington DC Near East South Asia Center for Strategic Studies NESA and Asia-Pacific Center for Security StudiesAPCSS Hawaii and US State Department IVLP[14] Having worked in the Sri Lankan telecommunication sector as a project manager at Sri Lanka Telecom and Hutchison Lanka from 2001 to 2005.

His research work on international relations and geopolitics is published by Routledge, IGI, NUS ISAS, Emerald, Cambridge University, Hudson Institute, South Asia Journal, ORF India, LSE and IPCS.

[33] In 2015, he was awarded 'Ambassador of Knowledge' from the Life learning Academia in Slovenia[34] In 2021, he was appointed to the 'Global Advisory council' at the Apolitical Academy Global(AAG) along with the former three time New Zealand Prime Minister Helen Clark and several other distinguished individuals.

[39] The book was endorsed by former national security advisor of India Shivshankar Menon, former foreign Minister Singapore George Yeo, and many other academics from around the world.