Dr. Stelios Sartzetakis received his Ph.D. degree in Electrical and Computer Engineering from the National Technical University of Athens, his M.Eng. in Systems and Computer Engineering from Carleton University of Ottawa, Canada, and his B.Sc. degree in Mathematics from Aristotelian University of Thessaloniki. He headed the telecommunications and networks laboratory of ICS-FORTH participating in various research and managerial positions in international research projects. He contributed to the research in the area of broadband network management, network performance evaluation, QoS and traffic management, charging and accounting of ATM and Internet traffic and services, broadband and wireless networks, and the design of large optical networks. He was principal in the creation of FORTHnet, the first Internet Service Provider in Greece. Dr. Sartzetakis was also visiting professor at the Dept. of Computer Science of the University of Crete. His current research interests include also cloud based large data processing and storage systems and openflow switching environments.