I am working as a postdoctoral scientist and senior lecturer at the ETH Zürich, Institute of Geodesy and Photogrammetry in the group of Geosensors and Engineering Geodesy.My professional interests are in geospatial sciences, focusing on engineering, satellite, physical, and geometric geodesy, with specific topics:- geodetic reference systems (terrestrial, celestial, height and time);- geospatial data collection using various instruments, including GNSS, total station, level, terrestrial laser scanner, UAV, camera, radar, gravimeter, and magnetometer;- geospatial data processing, integration, analysis, and interpretation; - high-precision GNSS and navigation;- geodetic networks;- 3D reality capture;- geodetic monitoring of infrastructural, industrial and environmental objects;- gravity and magnetic field modelling;- geoid modelling.Selected Contributions- geoid and gravity field models of the Republic of Croatia, France (Auvergne), Colorado (USA), Mediterranean Sea- proposal for the modernization of the Croatian height reference system- development of geodetic reference system transformation algorithms, workflows and software, including distortion modelling, for several areas worldwide- post-seismic crustal deformation analysis, following 2020 Zagreb and Petrinja's earthquakes (Republic of Croatia)- 3D models of the cultural heritage sites- geomagnetic network establishment and surveying for the territory of the Republic of Croatia- geomagnetic network design of Switzerland- concept design of the coordinate reference systems for the CERN Future Circular Collider (FCC)- concept design of the surface and underground geodetic networks for the CERN FCC- concept for calibration, control and testing of the geodetic equipment for the CERN FCC- GNSS smartphone positioning and navigation in different conditions and areas (several datasets in Slovakia and the USA).Please find more details at the following links: https://mvarga1989.github.io/Matej_Varga/https://mvarga1989.github.io/mvarga1989_linktree/