Kamitsubo began his career in the anime industry as a photographer and episode director with studios Gonzo and Studio Deen. In 2004, he worked under Akiyuki Shinbo on the original anime series Magical Girl Lyrical Nanoha, and the following year was brought into Shaft by Shinbo the following year, where his first project with the company was as an episode director on Tsukuyomi: Moon Phase.
Kamitsubo started in the anime industry as a photographer and episode director at Gonzo and Studio Deen. In 2004, he worked alongside Akiyuki Shinbo on Magical Girl Lyrical Nanoha; the following year, he joined Shaft under Shinbo's guidance, where his initial project was an episode director for Tsukuyomi: Moon Phase.