President and Chief Executive Officer of Siemens AG
- 1980: Joined Siemens AG, Components Group
- 1987: Siemens Semiconductors, Malacca, Malaysia
- 1988: Siemens AG, Semiconductors Group
- 1990: Opto Semiconductors Division
- 1995: Siemens Microelectronics Inc., San José, CA, USA
- 1999: Siemens AG, Corporate Finance. Accounting Unit. Controlling and Taxes
- April 2001: Member of the Group Executive Management of the Information and Communication Mobile Group
- October 2004: Chief Strategy Officer of Siemens AG
- May 2006: Member of the Managing Board of Siemens AG
- August 2013: President and Chief Executive Officer of Siemens AG
- Allianz Deutschland AG, Munich (until March 2020)
- Daimler AG, Stuttgart*
- Mercedes-Benz AG, Stuttgart
- NXP Semiconductors N.V., Netherlands*
- Chairman of the APA (Asia-Pacific Committee of German Business)