2014 - present Guest Researcher, Department of Arachnida, Zoologisches Forschungsmuseum Alexander Koenig, Bonn/Germany
2014 – 2015 Ornithologist / biologist at Süd-West Versand, Langenau/Germany
2005 - present Guest Research Associate, Department of Terrestrial Zoology, Naturalis Biodiversity Center and University, Leiden (Netherlands)
2009 Research Fellow Entomology, Naturalis Biodiversity Center
2009 Consultant and expedition participant, Conservation International Rapid biodiversity assessment (RAP) of the Nakanai Mountains, Papua New Guinea
2008 Scientist / content developer for museum exhibition 'Expeditie Darwin' (2009) at Naturalis Biodiversity Center, Leiden (Netherlands)
2006 SYNTHESYS fellow, Zoological Museum Copenhagen, Denmark
2005 PhD from Leiden University (Netherlands)
1994 - 1999 Research Fellow (PhD student) at NWO (Nederlands Organisation for Scientific Research)
1994 ERASMUS-fellow Institute for Ecological and Evolutionary Sciences, Leiden University, Netherlands
1993 Diplom Biologie Rheinische Friedrich-Wilhelms-Universität Bonn, Germany
1991 - 1992 Student assistant, Zoological Research Museum Alexander Koenig, Bonn
1985 - 1987 Civil Service, Germany