Panagiotis Monachelis received a degree as Electronic Engineer from Technological Educational Institution of Athens. He holds a master’s degree in Networking and Data Communications from Kingston University in partnership with Piraeus University of Applied Science. He has worked on domain of microcontrollers in technical company and as well in the IT department in banking sector. Currently, he is a member of the lab teaching staff and PhD student at the Electrical and Electronics Engineering Department of University of West Attica. His research topic focuses on Big Data mining and visualization over Online Social Networks. He is involved with the EUNOMIA project of CoNSeRT on the visualization field.