- 1987: Residency at the Institute for Transfusion Medicine, University Clinics, Essen, Germany
- 1996: Board certification Transfusion Medicine
- 2000: Venia legendi in Transfusion Medicine
- 2002 – 2006: Head of Research and Development at the German Red Cross Blood Donor Service West “Karl-Landsteiner” Foundation
- 2006: Associate Professor
- 2007: Board Certification Hemostasis
- 2006 – 2008: Interim director of the Institute for Transfusion Medicine at the University Clinics Essen, Germany
- 2008 – 2009: Head of Munich Blood Bank, Germany
- 2010 – 2013: Head of Transfusion Service plusBlut, Brandenburg, Germany
- 2013 – 2018: Medical Director German Red Cross Blood Donor Service North East, Institute Cottbus, Germany
- 2019 – now: Regional medical head Octapharma Plasma