Mr. Fotis Tsamis is an undergraduate student in the Department of Informatics and Telematics of Harokopio University of Athens. From 2011 until 2015 he worked at the Computer Technology Institute and Press "Diophantus" as an open-source software developer for applications used in school computer labs. Since 2017, he works at the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens as an operations engineer on the Sentinel data dissemination services provisioned by the European Space Agency funded programme "Sentinels Rolling Archive User Access, Operations, Maintenance and Evolutions".