| 1991-1994 | University of Applied Sciences for Finance of the State of North Rhine-Westphalia, Nordkirchen |
| 1994-1995 | Senior tax inspector in the North Rhine-Westphalia tax administration |
| 1995-1998 | Employment with Rudolf Arend, certified financial advisor/tax consultant, in Düsseldorf |
| 1998-2014 | Tax consultant at DEVK Insurance in Cologne |
| 2004 | Tax advisor examination |
| 2012 | Appointment as a tax advisor |
| 2014-2022 | Head of the Tax Department at DEVK Insurance in Cologne |
| 2023-2025 | Senior Tax Advisor in the TAX division of Currenta GmbH & Co. OHG |
| since 2025 | Tax consultant at Dr. Ganteführer, Marquardt & Partner |
