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Senior Management

Ümit Önal

Starting his professional life in media and communication sector, Ümit Önal joined Turkuvaz Media Group in 2007 and worked as General Manager of ATV, Advertisement VP and Executive Committee Member respectively until 2015.

In 2015, Ümit Önal took over the position of CEO and Executive Board Member of Digitürk and managed the sale process of Digitürk to BeIN group successfully.

Ümit Önal joined Türk Telekom at the end of 2016 and he served as Sales and Customer Care Assistant General Manager between 2016 and 2018. He has also served as Marketing and Customer Care Assistant General Manager since December 2018.

By leading the most successful growth performance since the IPO of Türk Telekom, in 2018 Ümit Önal put his signature under the record subscriber growth and highest revenue increase of the last decade.

As of 31st July 2019, Ümit Önal has been appointed as the CEO of Türk Telekom, the leader telecommunication and technology company of Turkey and he started to work with the vision of leading to the digital and technological transformation of our country.

He has more than 20 years expertise in media industry, which gave him a chance to be a part of Turkey’s media transformation and he has played an active role in sector organizations throughout his career. He is the former Chairman and current Board Member at TİAK (TV Monitoring and Research Committee) and Committee Chairman at TVYD (Association of TV Broadcasters). He is married and father of three daughters. Ümit Önal, born in 1973, graduated from İstanbul University Department of Advertising and Public Relations of Faculty of Communication.​​

Kaan Aktan

Kaan Aktan, after Galatasaray High School, graduated from Boğaziçi University, Economics in 1995. He started his career at Anadolu Group. He worked in PepsiCo-Pepsi Bottling Group Turkey Operation in 2002 and afterwards he worked at Texas Pacific Group Investment Fund Turkey Asset Management companies as finance manager since 2007. He joined Türk Telekom in 2010 as Director of Financial Projects. He was appointed as TTNET CFO in March 2013. From September to December 2014, in addition to his existing responsibilities, Mr. Aktan acted as a Deputy CEO of TTNET. Kaan Aktan served as Consumer finance Assistant General Manager of TTNET between February 2015 and November 2016, and since August 2016, he also acted as Deputy General Manager of AssisTT.

Mr. Aktan is serving as Finance Assistant General Manager since December 2016. ​​

After receiving bachelor’s degree in Electronics and Communication Engineering from İstanbul Technical University in 1991, Dr. Mehmet Beytur obtained his master's degree in Economics from Marmara University in 1995 and his Ph.D. in Business Administration from Gebze Institute of Technology in 2008.

He started his career as an access engineer at Türk Telekom (at that time PTT) in 1991 and after serving as chief engineer, manager, assistant region manager and provincial manager, he has served as Istanbul Region Manager for more than 10 years. In this role, he carried out technical, commercial and all support functions. Cable TV, X-Bar Transformation, Rural Transformation, NGN, Fiber Transformation, Dealership System, Call Center Project, Office Conversion Project, Performance Administration System and Organizational Alteration Projects were included in some of his projects.

Dr. Mehmet Beytur is the Chairman of the Board of Directors of the Türk Telekom BYS (Saving and Aid Fund), as well as a member of the Board of Directors of Türk Telekom Basketball Club.

Dr. Mehmet Beytur is serving as Support Services and Procurement Management Assistant General Manager since September 2019. He is also serving as Acting Human Resources Assistant General Manager.​

Dr. Ramazan Demir

After graduating from Industrial Engineering Department at Bilkent in 1995, Ramazan Demir obtained his PhD degree in Operations Research in 2000 from MIT, Sloan School of Management. Until 2005, he worked in the private jet start-up, Sentient Jet, in creating a successful asset-free marketplace. Afterwards, Dr. Demir worked as Director of Marketplace Design for Yahoo!’s global products including Search and Vertical businesses (now Verizon Media) for 4 years. Dr. Demir joined Türk Telekom Group in 2009, since then he has been serving in variety of capacities; Chief Strategy and Business Development, Chief Regulation Officer, currently as the Chief Advisor on Digital Initiatives. Dr. Demir has been serving as a Board Member at European Telecommunications Association (ETNO) between 2014 and 2016. He has been serving as board members in several NGOs spanning in communications, technology and media. He has functioned as Chief Science Advisor for a vibrant media and advertising company, Adconion Media (acquired by Amobee Inc). He developed portfolio management models for one of the leading investment houses, Putnam Investments.

Dr. Demir has 5 approved patents on internet technology, search engine and digital services: Ramazan Demir is serving as Digital and Cyber Security Product Development Assistant General Manager at Türk Telekom since March 2019.​​​

Fırat Yaman Er

Fırat Yaman Er graduated from BA department of Boğaziçi University in 1997 and earned his MBA degree from San Francisco State University in 2001. Mr. Er started his carrier at Dogan Holding in 1997. Afterwards, he started to work at Aria Communication Services and played an active role in the merger of Aria and Aycell. He continued his role in Avea after the merger. In 2008, he started to work as Business Planning Director at Oger Telecom. In 2011, he was appointed as Assistant General Manager responsible for Business Planning at Oger Telecom.

Mr. Er started to work as Assistant General Manager of Business Planning at Türk Telekom in May 2014. He also acted as Assistant General Manager of Strategy and Business Development between March 2016 and December 2016. Fırat Yaman Er is serving as Strategy, Planning and Business Development Assistant General Manager since December 2016.


Yusuf Kıraç

Yusuf Kıraç graduated in Electrical and Electronics Engineering from Hacettepe University in 1994. Following his undergraduate studies, in 1996 he started working as a manager in planning and integration management at Siemens and Nokia Siemens Networks. Mr. Kıraç started to work in Türk Telekom in 2008, taking part in the team that carried out the successful transformation projects in Türk Telekom’s All IP Architecture with Rural Transformation, Türk Telekom NGN and Fiber Transformation projects. In 2010, he assumed the role of Network Director and led many projects that gave profitability and capacity to Türk Telekom such as Fiberkentt, DWDM, MPLS, DC Conversion and TTVPN. In addition to his current role, he also chaired the NANI Working Group of ETNO, European Telecommunication Operators Organization, headquartered in Brussels, between 2010 and 2014. In his managerial role at ETNO, he worked closely with international organizations such as the European Commission, CoCom, ECC, ITU, ETSI, ICANN and RIPE for numbering and addressing issues; migrating from IPv4 to IPv6, number portability, and M2M’s future strategies and policies. After the integration of Türk Telekom, Avea and TTNet, he served as Core & Transport Network Director. He has also been a board member of ESB (Access Providers Association) since 2015. Yusuf Kıraç has served as Türk Telekom International General Manager since December 2016.​

Yakup Öztunç

Yakup Öztunç graduated from the Faculty of Law, Ankara University in 1996. Mr. Öztunç started his career in 1997 as a self-employed lawyer. After joining Türk Telekomünikasyon A.Ş. in 1998, he took several different responsibilities as lawyer, legal counsel and legal director.
Mr. Oztunc was responsible for adapting “Suspect Tracking System” to developing technology and changing legislation. Within this frame he coordinated the process of making the Legal Monitoring System (I-Hope System) available to all Türk Telekom Group Companies. Since 2003, he provided legal assistance as a counsel of the company regarding Collective Bargaining agreement. Mr. Oztunc was a member of License Coordination Committee which is established for supervising the implementation of the concession agreement between Türk Telekom and ICTA (2010 -2015). Additionally, he was a member of Türk Telekom Health, Social and Relief Foundation between 2007-2012 and Türk Telekom Saving Foundation between 2011-2014. He also served as PTT Foundation Board Member between 2014-2016.

Yakup Öztunç served as Legal Assistant General Manager at Türk Telekom between January 2017 – September 2019. Öztunç is serving as Legal and Regulation Assistant General Manager since September 2019.​

Yavuz Türkmen

Yavuz Türkmen graduated from Bilkent University, Economics with high honor in 1995. He started his career at KPMG. He worked at Türk Hava Yolları between 2004 and 2006 as Financial Control Manager, afterwards in 2006 he worked at a private chemical Company as Vice General Manager of Finance and Administrative Affairs. He joined Türk Telekom in 2007 as General Accounting Manager. Between 2009 – 2017, he served as Türk Telekom Financial Control Director and Türk Telekom Group Financial Control Director. During this period, he took an active role in reorganization of finance department and also took responsibility of many projects, each of which first in their fields. Yavuz Türkmen has CPA and Independent Auditor certificates.

Yavuz Türkmen is serving as Head of Internal Audit since February 2017.​​

Yavuz Yıldırım

Yavuz Yıldırım graduated from Uludağ University in 1999 from the Faculty of Economics and Administrative Sciences, Department of Business Administration. Following  his past work experiences in trading, he started his career in 2002 at Telsim, followed by various positions in sales and marketing units at Nortel Networks Netas between 2004 -2006 and then Vodafone between 2006-2009 (Approximately 3,5 years). Mr. Yıldırım joined Türk Telekom in 2009 as Director of SME Sales Operations and contributed to the establishment of SME sales channel. In November 2011, he undertook the Wholesale Sales Director role and served as the President of Türk Telekom Wholesale Clients Business Unit between April 2015 - December 2016.
Mr. Yıldırım is serving as Wholesale Assistant General Manager since December 2016.


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