since April 2016: Professor in Interface Geochemistry, FU Berlin and GFZ Potsdam
since Oct 1st 2014: Head of Interface Geochemistry group, German Research Centre for Geosciences, GFZ Potsdam, Germany
2007– 2020: Professor in Experimental Biogeochemistry, School of Earth and Environment, Univ. Leeds, UK
2005-2007: Reader in Geobiology, School of Earth and Environment, University of Leeds, UK
2004-2005: University Lecturer, School of Earth Sciences, University of Leeds, UK
1999-2004: University Research Fellow, School of Earth Sciences, University of Leeds, UK
1995 PhD: Aqueous Geochemistry, Swiss Federal Institute of Technology, Zurich, Switzerland
European Research Council Synergy Grant "Deep Purple " Darkening the Greenland Ice Sheet" 2020 -2025
UK-Natural Environment Research Council + Helmholtz Recruiting Initiative: Black and Bloom - Understanding the melting of the Greenland Ice Sheet; 2015-2020:
EU H2020 Marie Skłodowska-Curie Innovative Training Network: "Metal Oxide Aided Subsurface Remediation: from Invention to Injection – MetalAid" 2016-2021Diamond Ltd (annual beam time allocation for work at the UK synchrotron radiation facility)
European Synchrotron Radiation Facility (annual beam time allocation for work at the ESRF)