Kindler began his career with his contributions to the Stargate SG-1 and Stargate: Atlantis television series. He joined the Stargate production team at the start of Stargate SG-1's sixth season in 2002. Later he became a writer and producer for the programme. In May 2007 Kindler launched the independent Canadian web series Sanctuary, which was then picked up for television by The Movie Network in Canada and Syfy in the United States. The show lasted four seasons with Kindler serving as producer, writer and director. Kindler subsequently worked as writer and Executive Producer on Universal Soldier: The Series for FremantleMedia and is currently Co-Executive Producer and writer on the series Sleepy Hollow for the Fox Broadcasting Company. Kindler formerly played left wing for the Mighty Thunder, a North Vancouver rec hockey team, which he recently retired from. He is also one of the founders of Sanctuary for Kids, a foundation that supports children's charities around the world through fundraising auctions and other activities. In 2014, Kindler permanently moved to Los Angeles from Vancouver, Canada to further his work on Sleepy Hollow.