1984-1989 tax and audit assistant at a tax consulting firm
1989-1994 tax and audit assistant at Dreyer & Böck, Munich, with a break of six months for an assignment at the Bavarian Ministry for Federal and European Affairs in Brussels
Since 1995 tax advisor
1995-2001 tax advisor at a Munich-based audit firm
2001 partner at the tax consulting firm Dreyer & Böck