Ellis started out in agency-side marketing before moving in-house at Red Bull, working across athlete and event marketing. From there she moved into production, joining VFX studio The Mill as Head of Marketing, before taking a group role at Technicolor leading marketing across film, TV, animation, and games across the Technicolor family of brands (Technicolor, MPC, Mikros, Technicolor Games). Most recently she was Head of Marketing at Room 8 Group, global co-dev partner on titles including Call of Duty, FIFA, and Alan Wake. Ellis joined Blazing Griffin in 2025 and leads brand and marketing for the group across games, pictures, and post-production.