Deniz began performing at the age of eight; he trained in one of Australia’s musical theaters, where he made his professional debt in 2007. Deniz enjoys playing football (Soccer) and practising Martial arts in his spare time.
For Disney, he played a sports-enthusiast named Raff in Disney Channel Australia’s version of As the Bell Rings. He also appeared on the segment Pass the Plate and was a competitor in the 2008 Disney Channel Games on the Red Team. He played Marco in Jessie.