Prof. Panayiotis Tsanakas received his BS degree in electrical engineering from the University of Thessaloniki, his MSc in Computer Engineering from Ohio University, and his PhD in Computer Engineering from the National Technical University of Athens. He is currently serving as professor of computer science in the School of Electrical and Computer Engineering of the National Technical University of Athens.  He has participated in several national and EU-sponsored projects, in subjects covering e-Infrastructures, distributed systems, parallel computer architectures, embedded systems, grid computing, and medical informatics. He has published four Greek textbooks and more than 80 research articles in scientific journals and international conferences. He is currently the Chairman of GRNET, the state organization responsible for the deployment and operation of the national academic network, and the research infrastructures in both cloud computing and high-performance computing. He has also served as a member of the national telecom regulator (EETT). His research interests include high performance computer systems architectures, grid/cloud computing, and distributed medical applications.