| 1999 – 2003 | Assistant, Institute of Mathematics, University of Zurich (CH) |
| 2003 – 2004 | Postdoc, Institute of Mathematics, University of Zurich (CH) |
| 2004 – 2007 | Assistant Professor (ntt), Vanderbilt University, Nashville, TN (USA) |
| 2007 – 2015 | Professor (W2) for mathematical modeling, esp. nonlinear differential equations, Leibniz Universität Hannover |
| Since Apr. 2015 | Professor (W3) for mathematical modeling, esp. nonlinear differential equations, Leibniz Universität Hannover |
| 2017 - 2019 | Vice Dean of Studies, Faculty of Mathematics and Physics, Leibniz Universität Hannover |
| Since Apr. 2019 | Dean of Studies, Faculty of Mathematics and Physics, Leibniz Universität Hannover |