Oliver completed a Bachelor of Music (Composition) in 2015 at the Sydney Conservatorium of Music and is currently the composer-in-residence at Meriden School. Since 2012 he has worked as an arranger and composer across many genres and regularly performs with singer/songwriters Olga Solar and Jack Colwell. In 2017 Oliver devised and composed The Colour Orange: The Pauline Hanson Musical winning the Critics Pick award at the 2017 Sydney Fringe Festival. The show toured and played at Sideshow Festival, Sydney Comedy Festival 2018, and Adelaide Fringe Festival 2018 where he won the Emerging Artist Award. In 2019 Oliver was selected to attend a residency at the Atlantic Music Festival and was the recipient of the 2021 Willgoss Prize for his piece, five lullabies for uncertain times to be premiered later this year.