M. Zahidul H. Bhuiyan is a research professor at the Department of Navigation and Positioning at the Finnish Geospatial Research Institute (FGI). He has more than 15 years of experience in the GNSS field with expertise in multi-frequency multi-GNSS receiver development. He is actively involved in teaching GNSS related courses in Finnish universities and other international training schools. He has also been working as a technical expert for the EU Agency for the Space Programme (EUSPA) in H2020 project reviewing and proposal evaluation since 2017.