Constantin is the President of Pundi X and a founding member of the Indonesian Blockchain Association. He has 17 years of experience as founding CEO of two fintech companies: Infinetworks and E2Pay.co.id, pioneering Internet Banking, Mobile Banking and e-payment services in Indonesia. Previously, he worked at Accenture in Chicago and Jakarta. Constantin holds an M.Sc Computer Science (Purdue University) and a B.Sc Computer Science (University of Tulsa).