Ružica is a music journalist, critic and member of the music department of Radio Študent Ljubljana, one of the oldest non-commercial radio stations in Europe, established in 1969. As part of the radio she is the co-author and co- host of Hiljadu Decibela, a semi-monthly radio show that covers new music releases, artists and alternative scenes from the former Yugoslav countries. She is also an active host of DJ Seansa, a weekly show that through exclusive DJ sets and interviews promotes both upcoming and well established artists from Slovenia and different parts of the world. Since 2019 she is the active social media manager for Radio Terminal, a Slovenian online radio station. From the start of 2022 Ružica took over the role of co-head and program manager of Festival Tresk, an annual music festival organized by Radio Študent that brings together local, regional and European independent labels, distributors and artists.