The Helmholtz Centre Potsdam is seeking a Research Fellow to study biogeochemical cycles in terrestrial polar environments, focusing on aqueous chemical analyses of soils and rivers. The successful candidate will develop new methods for analyzing low-level nutrients and metals using advanced spectroscopic techniques and conduct geochemical modeling. This role includes collaboration with interdisciplinary teams, publishing research findings, and contributing to third-party funding proposals. Ideal candidates should have a PhD in analytical chemistry or related fields, with expertise in aqueous geochemistry and laboratory techniques. Supervisory experience is a plus.