Javier Prieto earned the PhD in Information and Communication Technologies and the Extraordinary Performance Award for Doctorate Studies from the University of Valladolid in 2012. At this University, he also received the Telecommunication Engineer degree (2008) and the Marketing Research and Techniques degree (2010). Since 2007, he has worked in different public and private research centers, such as: the Foundation Center for the Development of Telecommunications of Castilla y León (CEDETEL), the University of Valladolid (Spain) or the Massachusetts Institute of Technology (MIT). He has also served as a distinguished researcher at the University of Salamanca. Currently, he is an Associate Professor at the Department of Computer Science and Automation of the University of Salamanca. He is also a member of the Institute of Biomedical Research of Salamanca (IBSAL). He has published more than 175 research papers, and participated/coordinated more than 150 research projects. He serves as the Editor-in-Chief for the Smart Cities journal in the Internet of Things Section, and as an associate editor for the IEEE Communications Letters, the Frontiers in Public Health, and the Wireless Communications and Mobile Computing journals. Senior Member of the IEEE, he is the chair of the IEEE Communications Society and Signal Processing Society Joint Chapter, and the Coordinator of the IEEE Blockchain Spain Local Group.