Volker heads BuyIn, the 50:50 Procurement Joint Venture between Deutsche Telekom and Orange with offices in Paris and Bonn. He is responsible for strategic procurement activities in the customer equipment, network and service platforms areas of both operators, covering expenditure of approximately 13 billion euros in almost 50 countries. Volker has more than 20 years of experience in various executive positions and sectors. He joined Deutsche Telekom in 2002, as Head of Procurement for T-Mobile International, Bonn. In 2007, he became Chief Procurement Officer for Deutsche Telekom. Before that, Volker held various management positions at Bayer in Leverkusen. In 1997, he became CEO of Investment Bank Spütz, Düsseldorf, and simultaneously became Chief Finance Officer (CFO) of Tullet&Spütz, London. He was co-founder of the E-Procurement marketplace Goodex in 1999 as CFO and Director for Central Europe.