| Since 10/2022 | Professor for History Didactics at the Universität zu Köln |
| Since 9/2024 | Chairman of the Konferenz für Geschichtsdidaktik |
| Since 9/2024 | With Prof. Franziska Rein, Hildesheim: Leader of the working group diversity and inklusion of the Konferenz für Geschichtsdidaktik |
| 2020-2022 | Executive scientific director of the centre for teacher education at the CAU Kiel |
| 2019-2024 | With Dr. Martin Nitsche, Aarau: Leader of the working group empirical research about history teaching of the Konferenz für Geschichtsdidaktik |
| 2018-2020 | Executive director of the Historical Seminar of the CAU Kiel |
| 2016-2022 | Professor for History Didactics at Universität Kiel |
| 2013-2016 | Head of Team Praxisphasen/Deputy executive of centre for teacher education at Universität zu Köln |
| 2010-2013 | Lecturer for special tasks at the History department of the Universität zu Köln (History Didactics) |
| 2009-2011 | Lecturer at the Fachhochschule Köln |
| 2002-2010 | Teacher in special needs education |
