Dr. Juan Moreno works as a rolling stock engineer in the Engineering and Research Department of Madrid Metro, where he has led many projects on railway communications and is now focused on research activities. He is also a part-time professor & researcher (Radio Communications Group) in the Universidad Politécnica de Madrid. He has been working in railways since 2007, first on high-speed and then in subways. He has participated in many railway-related research projects like Roll2Rail, EmulRadio4Rail, Run2Rail and Tecrail, has three patents and has co-authored more than 60 papers on railway communications. His research interests are channel measurement & modelling, railway communications systems, condition-based maintenance for railways, software-defined radio and rolling stock digitalization.