Since July 2018, Michael Chalvatzis is a member of the Telekom Security executive team and worldwide responsible for Solution Sales & Consulting. Before that, he held various senior positions as a member of the senior management team of Cisco Germany as Head of Services and Consulting, as well as executive positions at "digibridge GmbH" responsible for the foundation of the "Greek-German IT-Cluster" and as Director Networking and Security at VMware for the Central Europe region. Previously, Mr. Chalvatzis held various executive positions in major international banks in the area of e-commerce and IT financing.