Tomasz Hadas completed his Ph.D. studies in satellite geodesy (2015) with honors and habilitation in technical science (2018) at the UPWr. He was a laureate of the Minister’s Scholarship for Outstanding Young Scientists in Poland (2018) and a Marie Skłodowska-Curie Fellow at the Institute of Navigation of the University of Stuttgart, Germany (2019–2021). He is a member of the IGS (International GNSS Service) real-time working group and co-chair of the IAG (International Association of Geodesy) working group “PPP with Ambiguity Resolution”. He has published 26 peer-reviewed papers, cited over 1100 times. Recently, his research interests have focused on real-time precise positioning and troposphere monitoring, low-cost GNSS receivers, and geoscience applications of the Galileo High Accuracy Service (HAS).