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

  • Chief Executive Officer of Türk Telekom International since November 2023
  • Graduated from Uludağ University in 1999 from the Faculty of Economics and Administrative Sciences, Department of Business Administration
  • 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.
  • Joined Vodafone where he played a valuable role in the company between 2006-2009.
  • Joined Türk Telekom in 2009 as Director of SME Sales Operations and contributed to the establishment of SME sales channel
  • Served as the President of Türk Telekom Wholesale Clients Business Unit between April 2015-December 2016.
  • 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 as of Nov 2023.
  • Graduated from Boğaziçi University, Department of Business Administration (1996).
  • Completed “Innovative Marketing for Strategic Advantage” programme at Stanford University (2018) and “New Frontiers” programme at MIT (Massachusetts Institute of Technology-2017)
  • Started his professional career at Çuhadaroğlu Holding in Moscow Office (1996).
  • Worked at ENKA Group as “Sales and Business Development Manager” within Foreign Trade Department in Moscow (1997-2000).
  • Started working for Nestle in 2000 and assuming the roles of “CPW Türkiye Country Director”, “Regional Marketing Director for Central Asia” based in Uzbekistan, and Head of National Key Accounts for Nestle Türkiye respectively and then moved to Nestle’s Global Headquarters in Switzerland (2011-2014), worked first as “Business Excellence Manager” in Global Customer & Sales Management Unit and then as “Marketing Manager” in Global Beverages Strategic Business Unit (NESCAFE Group). Returned Turkiye and became NESCAFE general manager and Nestle Turkiye Executive Board Member (2014-2015)
  • In Jan 2016, moved to telecommunciations industry, started working at Turkcell first as “Chief Consumer Sales Officer ”and then “Chief Marketing Officer” (2016-2019).
  • In Jan 2020 , joined Türk Telekom Group first at Türk Telekom International as “Chief Commercial Officer” then in May 2020 assigned as “Chief Consumer Sales Officer” of Türk Telekom .
  • Rejoined Türk Telekom International as “Chief Marketing Officer” in Nov 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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