Leon Moses Fasthuber grew up in Wels (Upper Austria) and discovered his passion for film while studying web and multimedia design at school. He gained his first experience in the LOST workshop before spending a year volunteering in Ecuador after graduating from high school, where he developed a film workshop with young people. Back in Austria, he worked at the Gartenbaukino cinema in Vienna. Leon has been involved with the YOUKI Festival since 2023 and made his directorial and screenwriting debut in 2024 with (Keine) Träume unterm Sternendach (No Dreams in the Starry Vault) as part of the Medien Kultur Haus's Artist in Residence programme.
Today, he produces short films together with friends and acquaintances. Since the summer of 2025, he has also been working in the advertising industry, supporting film productions in advertising shoots.