İdil Kesten has been managing Gemius Türkiye, the Turkish country office of the Poland-based Gemius SA, which operates in digital advertising technology and digital and cross-media research, since 2013. Before joining Gemius, she worked as the Business Development Manager responsible for comScore’s products and services in Turkey, a U.S.-based company operating in a similar sector. Kesten graduated from Galatasaray University with a degree in International Relations in 2004 and completed her master's degree in Southeast European Studies at the University of Athens. In 2022, she completed the Stanford LEAD program at Stanford University, focusing on leadership training.

Kesten has participated as a speaker in numerous summits and forums, including Brand Age, Webrazzi Summits, and Vogue Leaders Forum.