Romain has worked as a composer, music producer, and sound designer for film, animation, and video games. He has scored multiple visual medias, from short films such as Lone Tree (2020, dir. Lachlan Bembrick), Scrambled (2019, dir. Jordan Burgess), Perception (2018, dir. Jordyn Haney). In 2018, he also worked on Wheel Of Fortune, a cinematic theatrical play gathering young talents around Brisbane, which received a lot of praise from the media. Since 2016, Romain runs his solo project under the name of JSZ. In 2019 he released his EP Odyssey and his single Yaaro, which was a collaboration with students from the KM music conservatory. Other notable works from JSZ would be The tales of Outis Vol.1, 2, 3, and Nautilus. Romain is currently looking to broaden his musical palette with a deeper immersion in experimental music with his latest release La Musique du Son 1.
Romain has also been involved within the Australian music scene, where his research on the music industry led to him being a speaker for the QUT music biz forum. He has also worked as one a music composer for Soundline, an interactive art installation for the Ars Electronica Festival 2018 in Austria, and finalist at the 2019 Interactions Awards in Seattle, USA. Romain expanded on his musical journey by going to Chennai, India, at the end of the 2018 to collaborate and work with Indian and Australian emerging artists in a project called Unearthing India. During that same occasion he participated in Indiearth 2018, an international music and film festival based in Chennai.