Mr. Chheang is a Southeast Asia Consultant at the Nippon Foundation in Japan. He is also a visiting scholar at the China Institute for International Studies (CIIS), cofounder and chairman of Advisory Board, and adjunct senior fellow at the Cambodian Institute for Cooperation and Peace (CICP), where he previously served as executive director from 2009 to 2013. He was a Lecturer of Asia-Pacific Studies at the University of Leeds from 2013 to 2016, delivering modules on international politics of the Asia Pacific and governance and development in Southeast Asia.

Mr. Chheang served as a technical adviser to the Cambodian National Assembly, helping to organize the 32nd ASEAN Inter-Parliamentary Assembly in 2011. He supported the Ministry of National Defense of Cambodia to host the Sixth ASEAN Defense Ministers Meeting in 2012. He has been awarded numerous fellowships, including the Young Global Leadership Program of the World Economic Forum (2013), T-wai's Global Emerging Voices (2013), The Nippon Foundation Fellowship for Asian Public Intellectuals (2013-2014), France's Ministry of Foreign Affairs Personalités d'avenir (2012), the CSIS Pacific Forum Young Leadership (2010), and the East-West Center's Asia Pacific Leadership Program (2008).

He has also been a visiting research fellow at the Institute for Developing Economies (IDE-JETRO) in Chiba and a Southeast Asia Fellow at the East-West Center in Washington. His research interests include governance and development in Southeast Asia, international politics of the Asia Pacific, and social innovation and people-centered regionalism.