Our Management Structure
Mehmet Fırat
SabancıDx Chief Executive Officer (CEO)
Mehmet Fırat completed his undergraduate studies in the Department of Mathematics at Middle East Technical University in 2001. He pursued his academic career in the field of Information Systems Management at the University of Strathclyde following his bachelor’s degree, and completed the Digital Transformation Master’s Program at Northwestern University in 2023.
Fırat began his professional career in 2003 at Havelsan Inc. as a Senior SAP Consultant / Project Manager, taking on various consulting, project management, and program management roles in SAP projects across different companies and industries. Serving as a Project Manager at Başkent Electricity Distribution Company in 2009, Fırat joined Enerjisa Enerji in 2011, where he subsequently held the positions of Information Technology Manager, Head of Project Management Office, and Director of Information Systems.
Between 2020 and 2025, Fırat served as Head of Information Technologies and Digital Business Management at Enerjisa Enerji. He is a Board Member at Teknosa, a Sabancı Holding subsidiary; Deputy Chairman of the Board at Zack.ai, a Sabancı Ventures artificial intelligence investment; and a Board Member at Eşarj, the electric vehicle charging network company. As of January 1, 2026, Mehmet Fırat has been appointed as the CEO of SabancıDx.
Fırat began his professional career in 2003 at Havelsan Inc. as a Senior SAP Consultant / Project Manager, taking on various consulting, project management, and program management roles in SAP projects across different companies and industries. Serving as a Project Manager at Başkent Electricity Distribution Company in 2009, Fırat joined Enerjisa Enerji in 2011, where he subsequently held the positions of Information Technology Manager, Head of Project Management Office, and Director of Information Systems.
Between 2020 and 2025, Fırat served as Head of Information Technologies and Digital Business Management at Enerjisa Enerji. He is a Board Member at Teknosa, a Sabancı Holding subsidiary; Deputy Chairman of the Board at Zack.ai, a Sabancı Ventures artificial intelligence investment; and a Board Member at Eşarj, the electric vehicle charging network company. As of January 1, 2026, Mehmet Fırat has been appointed as the CEO of SabancıDx.
İrem Cantaş Aygün
SabancıDx Chief Growth Officer (CGO)
İrem Cantaş Aygün graduated from Economics Engineering Department of Middle East Technical University in 2008 and earned her master’s degree in Science and Technology Policy Studies from the same university in 2010.
She commenced her career as a Business Analyst at Enerjisa Başkent Elektrik Distribution in 2009. Subsequently, she held various roles at Enerjisa, including Data Management Manager from 2015 to 2017, Segment and Product Management Manager from 2017 to 2019, and Digitalization Program Manager from 2019 to 2020.
In 2020, İrem transitioned to SabancıDx as the Product and Product Marketing Group Manager. She was promoted to Commercial Business Units Leader at StudioDx in 2023 and served as as the Acting Deputy General Manager for Sales and Marketing since June 2023. As of January 2024, İrem has been officially appointed as the Chief Customer Officer.
She commenced her career as a Business Analyst at Enerjisa Başkent Elektrik Distribution in 2009. Subsequently, she held various roles at Enerjisa, including Data Management Manager from 2015 to 2017, Segment and Product Management Manager from 2017 to 2019, and Digitalization Program Manager from 2019 to 2020.
In 2020, İrem transitioned to SabancıDx as the Product and Product Marketing Group Manager. She was promoted to Commercial Business Units Leader at StudioDx in 2023 and served as as the Acting Deputy General Manager for Sales and Marketing since June 2023. As of January 2024, İrem has been officially appointed as the Chief Customer Officer.
Semin Köseoğlu
SabancıDx People Experience & Sustainability Director
Semin Köseoğlu received her Bachelor’s Degree from Boğaziçi University, Faculty of Education in 2006, and continued her studies on Human Resources at Boğaziçi University.
She started working as Human Resources Specialist at McCann Erickson between 2008-2011 and worked as Human Resources Manager between 2011-2012. She continued her career as Strategic Human Resources Specialist, Recruitment and Organizational Development Team Leader and then Organizational Development Manager in Enerjisa between 2012-2018. She worked as Borusan Academy Training and Development Manager at Borusan Holding between 2018-2019.
Having joined SabancıDx as Human Resources Manager on February 2019, Semin Köseoğlu has worked as Employee Experience Group Manager until February 2020 and has been serving as SabancıDx Employee Experience Director since July 2022.
She started working as Human Resources Specialist at McCann Erickson between 2008-2011 and worked as Human Resources Manager between 2011-2012. She continued her career as Strategic Human Resources Specialist, Recruitment and Organizational Development Team Leader and then Organizational Development Manager in Enerjisa between 2012-2018. She worked as Borusan Academy Training and Development Manager at Borusan Holding between 2018-2019.
Having joined SabancıDx as Human Resources Manager on February 2019, Semin Köseoğlu has worked as Employee Experience Group Manager until February 2020 and has been serving as SabancıDx Employee Experience Director since July 2022.
Mehmet Üzüm
SabancıDx Finance Director
Mehmet Üzüm graduated from Yıldız Teknik University, Business Administration in 2012. He started his professional career life after receiving language education at St. Giles International Language School in London.
He worked as a Finance Audit Specialist at Ernst & Young between 2013 and 2015, as a Finance Audit Senior Specialist between 2015 and 2018, and as a Finance Audit Manager between 2018 and 2021.
Mehmet had been served as Finance Control Manager at Sabancı Holding since 2021-2024 and was appointed as SabancıDx Finance Director in September 2024.
He worked as a Finance Audit Specialist at Ernst & Young between 2013 and 2015, as a Finance Audit Senior Specialist between 2015 and 2018, and as a Finance Audit Manager between 2018 and 2021.
Mehmet had been served as Finance Control Manager at Sabancı Holding since 2021-2024 and was appointed as SabancıDx Finance Director in September 2024.
Onur Seyyar
SabancıDx Digital Transformation Products (StudioDx) Director
Onur graduated from the Middle East Technical University with a bachelor’s degree in Statistics in 2010.
Onur began his career in 2011 as a Data Scientist at Turk Telekom and in 2013, he joined to Enerjisa as Customer Analytics Specialist. During his tenure at Enerjisa, he held various roles, including Strategic Marketing and Customer Analytics Team Lead, and Segment Analytics and Product Manager. He worked at Mazda Motor Europe as a Customer Analytics Manager in 2019-2020.
In 2020, Onur joined SabancıDx as a Product Manager and was promoted to Group Manager of Product Management at StudioDx in 2022. As of January 2024, he has been leading StudioDx, overseeing all Digital Transformation Products at SabancıDx. In January 2025, he was appointed Director of StudioDx.
Onur began his career in 2011 as a Data Scientist at Turk Telekom and in 2013, he joined to Enerjisa as Customer Analytics Specialist. During his tenure at Enerjisa, he held various roles, including Strategic Marketing and Customer Analytics Team Lead, and Segment Analytics and Product Manager. He worked at Mazda Motor Europe as a Customer Analytics Manager in 2019-2020.
In 2020, Onur joined SabancıDx as a Product Manager and was promoted to Group Manager of Product Management at StudioDx in 2022. As of January 2024, he has been leading StudioDx, overseeing all Digital Transformation Products at SabancıDx. In January 2025, he was appointed Director of StudioDx.
Duygu Kesler Çakmak
SabancıDx Legal Manager
Duygu Kesler Çakmak graduated from Ankara University Faculty of Law in 2013. She obtained her master’s degree in Private Law from Istanbul University, where she is currently pursuing a Ph.D. in the same field.
She began her professional career at Özgün Law Office, where she worked from 2013 to 2019. She then served as a legal counsel at CCN Investment Holding between 2019 and 2020, and at Enerjisa between 2020 and 2023. In 2023, she was appointed as Legal and Compliance Manager at Mavi Giyim, a role she held until 2024. As of August 2024, Duygu Kesler Çakmak has been serving as Legal Manager at SabancıDx.
She began her professional career at Özgün Law Office, where she worked from 2013 to 2019. She then served as a legal counsel at CCN Investment Holding between 2019 and 2020, and at Enerjisa between 2020 and 2023. In 2023, she was appointed as Legal and Compliance Manager at Mavi Giyim, a role she held until 2024. As of August 2024, Duygu Kesler Çakmak has been serving as Legal Manager at SabancıDx.
