Matteo Sgammini is a Technical Officer at the Joint Research Centre (JRC) of the European Commission. Previously, he served as a Research Associate in the Navigation group at the German Aerospace Center (DLR) from 2008 to 2017 and as a system and software engineer at MTU Aero Engines. Grounded in GNSS signal processing and estimation theory, his current research focuses on enhancing GNSS resilience using multi-element antennas, timing services for critical infrastructures, and GNSS integrity for Safety-of-Life applications.