2013 Appointment as Chairman of the Managing Board of SCHOTT
2008 Heraeus Holding GmbH, Chief Executive Officer
2003 Heraeus Holding GmbH, Chief Operating and Technology Officer and Member of the Managing Board
1998 TEMIC Semiconductors, Chief Executive Officer
1995 TEMIC Semiconductors, General Manager for Integrated Circuits
1992 TEMIC Semiconductors, initially Trainee, then Project Manager and later Works Manager
Member of the Advisory Board of Würth Group, Chairman of the Supervisory Board of Sennheiser electronic GmbH & Co. KG.
Since 1 July 2002 Member of Bundesverband Glasindustrie e.V. (BV Glas) and its Director General since 2006
2000 – 2002 HEWContract GmbH Düsseldorf, Sales Project Manager at the Düsseldorf branch
1992 – 2000 Mannesmann AG Düsseldorf, Technical and Scientific Consultant in the central environmental protection and energy department
Cooperation with in the Federation of German Industries (BDI) and Glass Alliance Europe. President of Glass Alliance Europe since 2010.