A post-90s screenwriter and director, Jun holds a Bachelor's degree in Journalism from The Chinese University of Hong Kong and a Master of Philosophy in Gender Studies from the University of Cambridge. His filmography as writer-director includes Tracey (2018), Drifting (2021), and Queerpanorama (2025). He served as producer on Fly Me to the Moon (2023). His theatrical works include Song of Grief (premiered 2018, revived 2019) and In a Perfect World (2025).