- Since 2015 University of Rostock, LTA at the Experimental station and chair of Grassland and Fodder Sciences
- 2011 – 2015 University of Rostock, LTA at the Experimental station of the Faculty of Agricultural and Environmental Sciences
- 2008 – 2011 University of Rostock, LTA at the chair of plant nutrition and at the LUFA Rostock
- 2004 – 2007 Technical University of Munich, LTA at the chair of Ecological Farming
- 2002 – 2004 Seed company Dieckmann, Sülbeck. LTA.
- 1982 – 1984 University of Frankfurt/M, TA at the Centre of Biological Chemistry, Lab for Therapeutical Biochemistry
- 1980 – 1982 Max-Planck-Institute of Behavioural Physiology in Seewiesen MPIV. TA.
- 1977 – 1979 Bad Hersfeld. Technical agricultural assistant (LTA).