As a student at the Department of Economics of the Boğaziçi University, Ülker Uncu became one of the founding members of the Boğaziçi Performing Arts Ensemble that acclaimed recognition and professionalism with their works on theatre, music and publishing. Following her music career as an accordion player for 15 years with Kardeş Türküler (Songs of Fraternity), that is renowned music project of the ensemble with the goal of fraternizing and celebrating all the different ethnic cultures and music in Anatolia, Mesopotamia and Balkans, Uncu has taken over the management establishing BGST Organization in 2009 and representing the ensemble ever since. She is one of the programmers of Nilufer Jazz Holiday and Nilufer Music Festival since 2016. Since1992, Uncu has also been a member and an active contributor to the Feminist Women Circle initiative that works within the realm of arts and culture.