DTU Space at the Technical University of Denmark invites applications for a Postdoc in Hydrosphere (Marine Geodesy). The position focuses on sea level science and marine geodesy, with emphasis on the Arctic Ocean and contributions to the ESA ARCFRESH project. Research includes analysing dynamic sea level change, modelling vertical land motion, and quantifying gravity variations using advanced satellite data such as SWOT and GNSS-IR. The Postdoc will conduct multidisciplinary research, publish internationally, teach and supervise students, and collaborate closely with international partners to support climate adaptation and green transition strategies.