Chamizer joined Arutz HaYeladim (The Kids’ Channel) in 1993, where he first created the format of the kids game show “Sheshtus” which ran successfully for 20 seasons.
In 2005, he began writing drama series for children. His first show, ”The Eight” (165 episodes), about a group of gifted kids in a secret government project, became a huge cross-over hit which launched a new genre that became associated with Chamizer, of fast paced, story driven dramas full of plot twists and cliff hangers.
In 2007 Chamizer created “The Island” (150 episodes), a sci-fi kids drama about time travellers in a post-apocalyptic world. Chamizer’s third show, “The Greenhouse” (175 episodes) , about a school for future leaders, was launched in 2012 and became one of the most viewed programmes in Israel’s history.
In 2014 Chamizer created “The Hood” (150 episodes), about poor kids in a wealthy town. “The Hood” was also the first Israeli kids show to portray an LGBT affair.
In 2016, Netflix ordered an American remake for “The Greenhouse”, and kept Chamizer as the head writer and show runner for the new show. “Greenhouse Academy” was filmed entirely in Israel, with an American cast, and launched in 190 countries over the world. The first season of the series was released on Netflix on September 8, 2017. So far, four Greenhouse Academy seasons have aired.