Callun works at Parkour UK in the digital lead role along with colleague Lynn Jung.

Callun started parkour in 2012 after watching the famous ‘Storm Freerun – Volume One’ video. From that day, Callun had found his calling. Since then, Callun has established himself as a leading figure and advocate for mental health awareness and education within parkour. Callun coaches parkour to people of all ages in Crawley, and runs Contendunt – a mental health-focused community project promoting the inclusion and discussion of mental health in lifestyle sports. Callun also works as a freelancer in digital marketing.