Greg Steele started working on visual effects at Rhythm & Hues in 2004. He has worked on films such as Django Unchained, X-Men: First Class, The Incredible Hulk, and Night at the Museum. In 2013, he joined Method Studios he served as a visual effects supervisor for films like Avengers: Infinity War, Ghost in the Shell, Captain America: Civil War, and Guardians of the Galaxy.

Since 2020, he served as a production visual effects supervisor on Birds of Prey (2020) before joining Marvel Studios as a visual effects supervisor, working on their Disney+ series, Hawkeye and Ironheart.