Yandex is a large tech company making billions of dollars from advertising. Most clients manage their ads using a web app called Yandex Direct. At the time, it had serious UX issues and had gone years without a redesign. Both users and developers were frustrated with it, so I was given the opportunity to redesign it from the ground up.

Drawing on user feedback, interviews, analytics, and competitor research, I designed a series of prototypes and refined them iteratively through multiple rounds of user testing and adjustments.