Ferri Abolhassan can look back on a career in IT spanning more than twenty years. He studied at Saarland University and holds a doctorate in computer science. He began his professional career in the research and development department of Siemens in Munich and then moved to IBM in San Jose (USA). From 1992, he held various management positions at software manufacturer SAP, most recently as Senior Vice President of the global Retail Solutions business unit. After four years in the management of IDS Scheer as Co-CEO and Co-Chairman, Abolhassan returned to SAP in 2005. There, he most recently held the position of Executive Vice President Large Enterprise EMEA. In 2008, Abolhassan moved to T-Systems as a member of the Management Board, where he took over the Systems Integration division. From 2010, Abolhassan led the Production division until 2013, when he was responsible for the entire Delivery. From 2015, he headed the IT division with around 30,000 employees and 4,000 customers. From December 2015 to November 2016, Abolhassan was also responsible for setting up the Telekom Security business unit. The unit bundles all IT security areas in the Deutsche Telekom Group. In October 2016, he moved to Telekom Deutschland as Managing Director, heading the newly created Service business unit with around 33,000 service employees. In April 2017, Abolhassan became Managing Director of Deutsche Telekom Kundenservice GmbH (DTKS), which changed its name to Deutsche Telekom Service GmbH (DTS) on July 1, 2017. At the same time, he became Managing Director of Deutsche Telekom Technischer Service GmbH (DTTS), which changed its name to Deutsche Telekom Außendienst GmbH (DTA) on July 1. On May 1, 2021, Ferri Abolhassan was given additional responsibility for Telekom Deutschland's Privatkunden Vertriebsgesellschaft mbH (PVG) in addition to responsibility for service. PVG comprises the stationary retail and partner retail channels. In April 2022, he moved from the Board of Management of Deutsche Telekom Außendienst GmbH (DTA) to its Supervisory Board as Chairman. Abolhassan is also a member of the Supervisory Board of Deutsche Telekom IT GmbH and Chairman of the Supervisory Board of the German Research Center for Artificial Intelligence (DFKI). Among other things, he is involved on a voluntary basis in the Saarland Ambassador Initiative of the Saarland federal state government. He is also a member of the Saarland Digitalization Council, an advisory body to the federal state government. Abolhassan is the author of numerous reference books.