- Studies of business administration at University of Tübingen from 1987 until 1992;
graduation as Diplom-Kaufmann (MBA equivalent). - State tax consultant examination 1996
- State certified public accountant examination 1999
- Practice as junior auditor, tax consultant and auditor for prestigious, nationwide positioned, internationalized medium-sized auditing and tax consultancy companies (which merged in Big Four Companies today) in Stuttgart and Berlin from 1992 until 1999.
- Partner of prestigious, regionally leading, internationalized auditing, tax consultancy and legal companies in Reutlingen from 1999 until 2010. Close collaboration and cooperation with international network firms, especially in the UK and USA, in the field of risk management, internal control, internal audit and Sarbanes Oxley Act 404.
- Managing partner of Mauer Consultancy and Auditing Limited Liability Company and work as business consultant, auditor and tax consultant in Reutlingen since 2010.
- Visiting lecturer in the field of corporate governance, internal audit and enterprise risk management at the European School of International Business (ESB) of the Reutlingen University from 2004 until 2010.
- Member of the Institute of Auditors in Germany (Institut der Wirtschaftsprüfer in Deutschland e.V. – IDW), of the German Institute for Internal Audit (Deutsches Institut für Interne Revision e.V. – DIIR) and of the Association of German family-owned Businesses (Die Familienunternehmer – ASU).
- Member of the Committee of Real Estate Experts of the City of Reutlingen.
- Regular publications in various journals for medium-sized, capital market oriented and unlisted companies as well as in scientific journals.
- Regular lectures for several institutions and speeches for to medium sized companies (listed and not listed) at events.
- Member of the advisory board of the German Chamber of Auditors, Berlin, since 2011.
- Member of the budget committee of the advisory board of the German Chamber of Auditors since 2011.
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