Eleni Theodoropoulou (F), MSc., Telecom Engineer, holding a degree in Physics and a M.Sc. in Radioelectrology and Electronics from National University of Athens. She has been working for Greek Mobile Network Operators since 1994, with field of responsibility in the area of wireless broadband access, being involved in radio network planning and the co-ordination of technology trials and special projects (such as Athens 2004), while since 2009 she is heading the R&D Projects Mobile Section of COSMOTE. She has participated in several EU and national research projects and authored several scientific papers in the area of mobile communications. She is mainly involved in testing the new versions of the BigO application for both android and iOS smartphones, as well as testing all changes and upgrades performed in the school and clinical portals, monitoring their operation and reporting all issues spotted.