Executive Board

Completing his undergraduate studies in the Department of Industrial Engineering at Bilkent University in 1999, Sertan Eratay received his Master of Business Administration degree in 2007 by ranking first in his class from the Executive MBA program at Boğaziçi University. Eratay began his 24-year career as an internal auditor at GarantiBBVA Bank and later served as a branchless banking manager and he then held senior executive roles at Turkcell for ten years in the areas of digital transformation, internet services, and e-commerce. In 2015, he joined R/GA, a New York–based digital innovation and design company, where he established the firm’s Turkey and Middle East office and led its growth in the region as General Manager.

Since 2017, Eratay has been serving as an Associate Partner at McKinsey, where he has played key roles in shaping the digital strategies, AI transformations, and growth journeys of more than 20 companies across the banking, retail, and e-commerce sectors in four different countries.

As of June 2025, Eratay has joined Fibabanka and continues to serve as Executive Vice President in charge of Mobile Channels Sales and Marketing. Mr. Eratay serves as a Member of the Board of Directors at Alış Gidiş Miks Teknoloji Danışmanlık ve Elektronik Ticaret A.Ş.