Ewing appeared in Home and Away as Reuben Humpheries in 2007. He has also had guest roles in Blue Water High, Spirited and Rescue: Special Ops. Ewing secured a role as Dillon the Black RPM Ranger in the kid's television series Power Rangers RPM.
In September 2010, Ewing joined the cast of Home and Away again, this time as Heath Braxton. The actor made his debut in February 2011. Ewing also became a contestant on the 11th season of Dancing with the Stars. He was partnered with Luda Kroiter, and danced in support of the St Vincent de Paul Society, where his mother works. Ewing and Kroiter were eliminated in week five. On 9 December 2013, Ewing confirmed that he would be leaving Home and Away, and made his on-screen departure during the following year.
Ewing reprised his role as Heath Braxton for the feature-length special, Home and Away: An Eye for an Eye, along with co-star Lisa Gormley (Bianca Scott). In 2016, Ewing returned to Home and Away, along with Gormley. Both Ewing and Gormley starred in the feature-length specials Home and Away: Revenge and Home and Away: All or Nothing. Ewing also starred in the Australian feature film Red Billabong, alongside Tim Pocock. He has roles in Dunamis, and Chasing Comets.
In 2018, Ewing starred in horror film Beast No More, and the sci-fi action film Occupation, alongside Temuera Morrison. He filmed an appearance in the sci-fi thriller 1, directed by Robert Braiden, and made a guest appearance in the ninth episode of Harrow. In April 2019, Ewing joined the cast of Monster Problems.
