Christian P. Illek occupies the position of Chief Financial Officer for Deutsche Telekom AG and Chairman-Supervisory Board at T-Systems International GmbH and Chairman-Supervisory Board of T-Systems Enterprise Services GmbH (both are subsidiaries of Deutsche Telekom AG).

He is also on the board of T-Mobile US, Inc.

In his past career Dr. Illek occupied the position of Chief Executive Officer & Managing Director at Microsoft Deutschland GmbH, Marketing Director of Telekom Deutschland GmbH and Marketing Director of T-Mobile International AG.

Dr. Illek received an undergraduate degree from Ludwig-Maximilians-Universität München.