Justin was born and raised in Canberra, Australia, and began playing the bassoon at age 12.

Justin is a graduate of the Sydney Conservatorium of Music and the Royal College of Music in London. Throughout his education, he was mentored by Richard McIntyre, Andrew Barnes, Matthew Wilkie, Noriko Shimada, Joost Bosdijk, Julie Price, Sarah Burnett and Ole Kristian Dahl.

After completing his studies in 2018, he was appointed Principal Bassoon of the Aarhus Symphony Orchestra in Denmark, where he worked for 3 years before being appointed Associate Principal Bassoon of the New Zealand Symphony Orchestra in 2021.

He has performed as guest principal with many orchestras worldwide, including Sydney Symphony, Australian Opera and Ballet, Scottish Chamber, Royal Philharmonic and BBC Symphony.