Susanto Djaja obtained a Bachelor's degree in Economics from Atma Jaya Catholic University, Jakarta, Indonesia in 1992, and obtained a Master's degree in Business Law from Pelita Harapan University, Jakarta, Indonesia in 2005. Started his career at Mizuho Bank (formerly Dai-Ichi Kangyo Bank) in in 1991 as an operations staff, then in the Tempo Group as a Finance Manager and subsequently as a Corporate Treasurer and Manager of the Jabodetabek Branch Office. He was also a Lecturer in Financial Management at the Faculty of Economics, Atma Jaya Catholic University, Jakarta, Indonesia in 1991–2000.