| since 2019 | Professor at Oldenburg | |
| 2010 - 2019 | apl. Professor at Leibniz Universität Hannover | |
| 2007 - 2010 | Researcher at Leibniz Universität Hannover | |
| summer term 2007 | BMS-Visiting-Professor at FU Berlin | |
| Sept. 2005 - Jan. 2006 | Research Stay Institut de Math. de Jussieu (Paris) | |
| 2001 - 2007 | Lecturer (C1) at Fachbereich Mathematik, TU Kaiserslautern | |
| 1997 - 2001 | Assistent at Fachbereich Mathematik, Universität Kaiserslautern | |
| 2005 | Habilitation Title of Habilitationsschrift: Studying Singularities Using Computer Algebra Technische Universität Kaiserslautern |
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| 2000 | Dr. rer. nat. Title of Thesis: Moduli Spaces for Space Curve Singularities Universität Kaiserslautern |
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| 2020-present | Chair of the Fachgruppe Computeralgebra | |
| 2017-2020 | Co-Chair of the Fachgruppe Computeralgebra | |
| 2011-present | Member of the Executive Committee of the Fachgruppe Computeralgebra | |
| 2008 - 2019 | Equal opportunities respresentative of the Fakultät f. Mathematik und Physik, Leibniz Universität Hannover | |