The senior leadership team has an average of 9 years experience in CEE wholesale market. Management has a reputation amongst key global operators, for consistency and quality of service.

Yavuz Yıldırım

Chief Executive Officer

  • He has been the Chief executive officer of Türk Telekom International since 2023.10.11
  • He graduated from Uludağ University in 1999 from the Faculty of Economics and Administrative Sciences, Department of Business Administration
  • He started his successful career in 2002 where he began working at Telsim
  • Following his career with Telsim, he held various positions in the sales and marketing units at Nortel Networks Netaş between 2004-2006 where he furthered his experience in this sector.
  • He then joined Vodafone where he played a valuable role in the company between 2006-2009.
  • After leaving Vodafone, he joined Türk Telekom in 2009 as Director of SME Sales Operations and contributed to the establishment of SME sales channel
  • He then served as the President of Türk Telekom Wholesale Clients Business Unit between April 2015-December 2016.
  • He then continued his career at Türk Telekom as Wholesale Assistant General Manager between December 2016 and November 2023.

Hakan Oduncu

Chief Financial Officer

  • Chief Finance Officer of Türk Telekom International Group since 2021.07.01
  • Acting Chief Finance Officer of Türk Telekom International Group since December 2018
  • Finance Operations and Risk Managament Director at TTI since 2013
  • Group Finance Projects Manager at Türk Telekom from 2010 to 2013
  • Revenue Assurance Manager at TT from 2007 to 2010
  • Finance and Billing Manager at Borusan Telekom (Vodafone Net) between 2005 and 2007
  • Purchasing Engineer at Ford Motor Company
  • Finance specialist and controller at Abbott International fom 2002 to 2004
  • Credits and Risk Management roles at Finansbank and HSBC from 1999 to 2001
  • Holds BSc Engineering Physics from Istanbul Technical University; MS Business Administration from Malardalens University in Sweden; Strategy and Risk Management program degree from Stanford University, USA

İsmail Bütün

Chief Marketing Officer

  • Chief Marketing Officer of Türk Telekom International since 2023.10.11
  • graduated from Business Administration Department of Boğaziçi University in 1996.
  • started his professional career at Çuhadaroğlu Holding Moscow Office.
  • worked at Enka Group within Foreign Trade department in Moscow as Sales and Business Development Manager Between 1997 and 2000
  • worked at Nestle as a CPW Türkiye Country Manager, Regional Marketing Director for Central Asia based in Uzbekistan, and as Head of National Key Accounts for Nestle Türkiye.
  • Turkcell as “Senior Vice President of Retail Sales” in charge of Consumer Sales and also appointed as an Executive Committee Member. Between July 2016 and January 2019
  • joined Türk Telekom International as Chief Marketing Officer In January 2020
  • completed “New Frontiers” programme at MIT (Massachusetts Institute of Technology) in 2017 and “Innovative Marketing for Strategic Advantage” programme at Stanford University in 2018.
  • Before joining TTI worked as Consumer Sales Assistant General Manager In Turk Telekom between May 2020 and November 2023.

Ömer Demir

Chief Sales Officer

  • Chief Sales Officer of Türk Telekom International since 2021.07.01
  • Attended Washington State University and University of Texas in Arlington.
  • Attained Bachelors of Science degrees in Mechanical Engineering, Physics and Business Development.
  • Started his professional career at Texas Instruments as Quality Assurance Engineer
  • Later joined Avmat as the Purchasing and Contracts Manager.
  • Continued his career as the Sales and Marketing Director for the Middle East, CIS countries and Africa at Aereos HQ in Texas as of 2012.
  • Before joining TTI, worked as the Sales and Business Development Director at MTU Maintenance GmbH between 2018-2021.

Zekeriya Erkan

Chief Technology Officer

  • Chief Technology Officer of Türk Telekom International since 2017.02.16
  • Group Manager in charge of TTSMC Ankara at Operations Directorate since 2015
  • Management Systems Group Manager at Türk Telekom from 2010 to 2015
  • Transmission Systems Manager from 2000 to 2010
  • actively took roles in various projects and programmes such as Aycell GSM network, Regional Operation Centres, Umbrella Management Platform and establishment of SMC centres
  • Radio Link Engineer at Technical Operations and Maintenance Department at PTT from 1989
  • graduated from Electrics and Electronics Engineering, Karadeniz Technical University in 1988
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