Miller began his career at Wieden+Kennedy 12, the agency's experimental creative school, where he was mentored by legendary creative Susan Hoffman. He went on to spend more than 15 years as a writer and creative director at Wieden+Kennedy, including over a decade in Tokyo, creating award-winning campaigns for Nike and collaborating with celebrated filmmakers and athletes including Cristiano Ronaldo, Naomi Osaka, and Yu Darvish.

His career has taken him around the world, creating work for global brands including PlayStation, IKEA, Airbnb, and Google, as well as high-profile campaigns for Major League Baseball celebrating Shohei Ohtani and Japan's baseball stars. That experience developing bold ideas and crafting stories that connect with audiences now forms the foundation of his work as a director.

Beyond advertising, Miller wrote and co-produced two award-winning narrative shorts with longtime collaborator and director Mackenzie Sheppard: Man in Phone, an Academy Award-qualifying film, and Donny the Drone, a sci-fi festival favorite starring Guy Pearce. His passion for filmmaking eventually led him to generative AI, where he saw an opportunity to bring ambitious cinematic ideas to life in entirely new ways.

In 2025, Miller wrote and directed a fully AI-generated commercial that aired nationally on ESPN for Proofpoint. His films Luma Taxi and Luma Suds both won Luma AI's Dream Brief competition, earning two official entries into the 2026 Cannes Lions.

His original AI filmmaking spans genres and formats, including the festival-screened animated short The Bell and the Blade and Chet G. Petite, a microdrama series he directed and co-created with author Cameron Day. He is also developing original AI series, including the sports comedy Deadball Academy and the animated streetball series Smoke Check. Miller advises generative AI platforms on the development of filmmaking tools, helping keep artistry and craft at the forefront of the emerging medium.

Before finding his way into advertising and filmmaking, Miller was an All-State baseball pitcher and first baseman in Oregon, captained his college team for three years, and earned a major league tryout. He now lives in Scottsdale, Arizona.