since 2001 work at Fraunhofer ITEM in the field of chemical risk assessment
-- since 2008 group manager biocides at Fraunhofer ITEM 
-- since 2014 head of the division “Chemical risk assessment, databases and expert systems” and group manager “Biocides” in the Fraunhofer Institute for Toxicology und experimental Medicine (ITEM) in Hannover, Germany. 
-- responsible for hazard and risk evaluation of biocides, correspondence with competent authorities and within task forces of companies; research projects include projects on the database RepDose on repeated dose toxicity of industrial chemicals and a project about defining new chemical categories on the basis of toxicological profiles