October 2020 Appointed to the Bioeconomy Council of the Federal Government
1/2014 - 11/2019 State Secretary in the Hess. Ministry for the Environment, Climate Protection, Agriculture and Consumer Protection
2004 - 1/2014 Head of Unit "Evaluation of GMOs, Enforcement of the Genetic Engineering Act" at the German Federal Agency for Nature Conservation, Bonn
1987 - 2004 Head of the Department of Biodiversity, Food and Agriculture, Öko-Institut e.V. Freiburg, Member of the Extended Management Board
1985 - 1987 Scientific assistant to the Green parliamentary group in the German Bundestag for the Bundestag Commission of Inquiry "Opportunities and Risks of Genetic Engineering
1982 - 1984 University assistant at the FU Berlin, Institute for Molecular Biology and Biochemistry
1972 - 1982 Diploma and doctoral studies at the University of Bonn, Institute of Botany (Diploma), Institute of Immunology and Blood Transfusion (Doctorate)