Marko re-joined IBM Research in January 2015, as a Research Staff Member (earlier, he was also a Post-Doc and Intern in IBM) working on Blockchain. Before that, he was a faculty in EURECOM, France and a visiting professor at Systems Group @ ETH Zurich, Switzerland.

Marko obtained a Doctor of Science (PhD) degree in Distributed Systems from EPFL in the Distributed Programming Laboratory (LPD) in 2008. Before PhD, Marko graduated from EPFL Doctoral School in Computer and Communication Sciences in 2003 and obtained a dipl.ing. degree in Electrical Engineering (Telecommunications) from School of Electrical Engineering, University of Belgrade, in 2001.

He is a contributor to Hyperledger Fabric since the project exists and is one of the Fabric architects. He has extensive speaking experience at over 100 conferences,workshops and seminars.