Since 2022 Professor at University of Wuppertal
2019 - 2023 Coordinator of EU H2020 Project ENVRI-FAIR
since 2013 Member of Faculty of Physics at University of Wuppertal
since 2012 Co-Coordinator of Research Infrastructure IAGOS
since 2012 Head of Group Global Observation at Research Centre Jülich, IEK-8
2005 Habilitation and Private Lecturer for Meteorology at LMU Munich
SS 2002 Visiting Professor at the University of Vienna, Institute for Experimental Physics
1996 – 2012 Research associate and (since 2008) DLR Senior Scientist at DLR-Institute for Atmospheric Physics, Oberpfaffenhofen
1990 – 1995 PhD (Dr. rer. nat.) at Technical University of Munich