Doctor engineer Marek Hubert Zienkiewicz is a graduate of the Faculty of Geodesy, Spatial Engineering and Construction at the University of Warmia and Mazury in Olsztyn. During his engineering, master's and doctoral studies he developed his scientific interests under the supervision of representatives of the Olsztyn geodetic compensatory calculus school. In 2011, he obtained the title of Master of Science in Geodesy and Cartography, which was awarded to him for defending his thesis on "Free adjustment robust againt gross errors".

In his doctoral research he became interested in Msplit estimation - an innovative method of developing observations, the author of which is prof. Zbigniew Wiśniewski. It is worth noting that the above-mentioned scholar was also the supervisor of PhD Zienkiewicz's master thesis. The results of research carried out by a young scientist under the supervision of prof. Wiśniewski, were described in the dissertation "Selected, theoretical and application properties of Msplit Estimation", which he defended with honors on October 10, 2017.

After completing his doctoral studies at the University of Warmia and Mazury in Olsztyn, he continued his research career as an assistant and assistant professor at the Department of Geodesy and Oceanography at the Gdynia Maritime University. In March 2019, PhD Zienkiewicz joined the research staff of the Faculty of Civil and Environmental Engineering at the Gdańsk University of Technology, and he has been employed as an assistant professor at the Department of Geodesy. Currently, from March 2022, he is the Deputy of Head of the Department of Geodesy.

Doctor Zienkiewicz is the author or co-author of 20 scientific articles published in peer-reviewed journals with a wide international circulation. The research interests of the Gdańsk geodesist concern the theoretical and application properties of the method of estimating parameters in a split functional model of geodetic observations (Msplit estimation concept), deformation analysis of geodetic networks, developing and testing the properties of non-standard methods of developing observations, as well as processing geodetic data with the total and ordinary method of least squares.

He conducted classes in special geodetic measurements, mathematical methods of developing geodetic observations, surveying, as well as monitoring and geodetic measurements. Supervisor of 1 master thesis and 3 engineering theses. He was also an auxiliary supervisor of Paweł Szymon Dąbrowski, whose defense of the doctoral dissertation took place on September 19, 2019.

Currently, Marek Zienkiewicz is involved in the implementation of the project: "Msplit (q) estimation of parameter displacements using multivariate conditions binding competitive parameters", which is financed under the Miniatura 5 competition organized by the National Science Center (grant budget: PLN 42,154).