● Scientific Director, Institute of Vegetable and Ornamental Crops, Grossbeeren / Erfurt
● Scientific Director, Agricultural Research and Research Institute (LUFA) of LMS Agricultural Consulting, Rostock
● Professor of Plant Nutrition, University of Rostock
● Employed consultant, Head of the LDE Agricultural Academy at Land-Data Eurosoft, Hofgeismar
● Long-term lecturer, German Academic Exchange Service, DAAD
● Freelance consultant since 2011, Professor Kuchenbuch – Agrarknowhow