| Since 6 May 2025 | Parliamentary State Secretary to the Federal Minister of Defence |
| Since 2019 | Member and since 2020 co-chair of the Franco-German Parliamentary Assembly |
| 2018 – 2025 | Foreign policy spokesperson of the SPDSozialdemokratische Partei Deutschlands parliamentary group at the German Bundestag |
| Since 2017 | Member of the German Bundestag |
| 2011 – 2016 | Deputy Minister-President and Minister of Finance and Economic Affairs of the state of Baden-Württemberg |
| 2001 – 2011 | Self-employed lawyer |
| 1997 – 2017 | Member of the state parliament of Baden-Württemberg |
| 1994 – 1999 | Student of law at the University of Tübingen, received his doctorate in 2006 |
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