Filp was fligt test enginer in lalan Air Force until 1984. working on Tornado project, with Brish and Germans. Subsequenty he was responsible in ENAV (laian civil Air Trafic Control) for R&D and modernization projects, for automation of Area Control Centres. Manager for Northern Europe in EUROCONTROL since 2000. From 2005 worked at European Commission on accident investigation, data collection and extension of EASA remit to ATM/ANS and aerodromes. In EASA from 2007 to Jan 2015, as rule-making officer, developed rules on ATM, aerodromes, flight operations, flight crew licensing and initial airworthiness, including related regulatory impact assessments. Since 2008 he was focal point for rulemaking on Remotely Piloted Aircraft Systems (RPAS). Member or chair of several ICAO Committees, Panels or Study Groups, including the UAS SG which developed the ICAO "Manual" on the subject. In JARUS, rapporteur of WG/2 (organisations). Earlier Professor on international aviation safety regulation at University "Parthenope, now he teaches ATM at Giustino Fortunato Telematic University. Having left EASA in January 2015, became Technical Director of theItalian branch of EUROUSC where now he is CEO. He also supports the Estonian participation to JARUS and, in ICAO, is member of the Space Learning Group" and observer in the RPAS Panel.