Cenk Bayrakdar - Turkcell, Chief Services & Product Development Officer Cenk Bayrakdar started working for Turkcell in 2002. Having started his professional business life in Arçelik, he held several managerial positions in IT and Production Teams. He then worked in Corbuss as Business Development Coordinator between 2001-2002 and served as Business Development Manager of Turktell between 2002 and 2003. Prior to his current position in Turkcell as the Chief Services and Product Development Officer, Bayrakdar was performing as the Head of Content Services and Partnering in Turkcell.