2018- 2023 | Lead Author, IPCC Working Group I, 6th Assessment Report |
2014-2015 | Head, IPCC Working Group I Technical Support Unit (WGI TSU), University of Bern, Switzerland |
2009-2013 | Deputy Head, Director of Science, IPCC Working Group I Technical Support Unit (WGI TSU), University of Bern, Switzerland |
2009-2015 | Affiliated Scientist, Division for Climate and Environmental Physics, University of Bern, Bern, Switzerland |
2007-2009 | Research Scientist, Environmental Physics, Institute of Biogeochemistry and Pollutant Dynamics, Department of Environmental Sciences, ETH Zurich, Zurich, Switzerland |
2005-2007 | Postdoctoral Research Scientist, Division for Climate and Environmental Physics, University of Bern, Bern, Switzerland |
2004-2005 | Postdoctoral Research Scientist, Biogeochemistry Group, IGPP, University of California Los Angeles, Los Angeles, CA, USA |
2002-2004 | Postdoctoral Fellow, NOAA Program in Climate and Global Change (NOAA Yearbook) |
2002-2004 | Visiting Research Scientist, Biogeochemistry Group, IGPP, University of California Los Angeles, Los Angeles, CA, USA |
2001-2002 | Postdoctoral Research Scientist, Division for Climate and Environmental Physics, University of Bern, Bern, Switzerland |
1997-2001 | Research Assistant, Division for Climate and Environmental Physics, University of Bern, Bern, Switzerland |
1996-1997 | Research Scientist, Swiss Federal Institute for Snow and Avalanche Research, Davos, Switzerland |
1996 | Internship at the Swiss Federal Institute for Snow and Avalanche Research, Weissfluhjoch Davos, Davos, Switzerland |
1994-1996 | Research Assistant, Meteorology, Climatology and Remote Sensing Lab, University of Basel, Basel, Switzerland |