Ronald started his career in the music scene by becoming a Session Bass Player for many Indonesian Artist such as Agnez Mo, Glenn Fredly, Sammy Simorangkir, Sandhy Sondoro. Magenta Orchestra, and so on. Within and beyond that list, he later also became a Composer, Arranger, and Music Director for many recordings and live performances. In the Indonesian Christian Music scene, his list is equally impressive.

The List of Live Performances Ronald Directs includes: Disciples (Jesus Rock Live Concert, 2013), LA Lights Music Project (Time Capsule, Java Soulnation, 2013), Yamaha Music Project (Yamaha Music Sings Coldplay, Java Sound Fair, 2014 – The Greatest Movie Soundtrack of all time, Java Jazz Festival, 2014), MLDSPOT Special Perfomance (Indonesia Legendary Songs, Java Jazz Festival 2017), Bold Xperience, and many more. In 2018 Ronald was one of the Music Director of the ASIAN Games held in Jakarta which gained a lot of praise from participating countries.

A Yamaha Music Artist, Ronald routinely shared his knowledge with musicians in Indonesia and Malaysia, to name just a few things he done on a daily basis.