Fajar has joined the Centre for Strategic and International Studies (CSIS) Indonesia, the prominent think tank in the Southeast Asia-Pacific region, for more than 15 years. He is also active in delivering lectures/speeches as a Faculty Member at Faculty of Economics and Business, Indonesian International Islamic University (UIII), and as an Adjunct Faculty Member at the School of Government and Public Policy (SGPP) Indonesia. His research mainly focuses on how to improve/empower the economy in the global world, including related to the issue of global cooperation, food security, international trade, creative/digital economy, small and medium enterprises (SMEs), rural-urban poverty, and any other relevant issues in development economics. Besides research and teaching activities, he is also very active in public debate related to economic development issues through the seminar, workshop, papers/articles, and media interviews.
He holds a Ph.D. in Economics from the School of Economics at the Faculty of Arts and Social Sciences, University of Sydney, Australia. In addition, he completed his Master's degree in Development Studies at the Faculty of Economics, University of Rome “La Sapienza,” Italy, and his Bachelor's degree in Economics at the Faculty of Economics, University of Indonesia.