Originally from Paris, France, Guillaume co-founded his first studio right after high school, entering the digital media industry as it was emerging. Over his 27-year career, he has produced award-winning visual effects, animation, motion design, live-action, and VR/360 projects for top companies in Paris, Los Angeles, and New York City, including Framestore, Psyop, LIGHT, and BUF.

At Framestore, Guillaume contributed to notable 360-degree projects, such as Terrence Malick’s Together in partnership with Meta and the companion film for Nat Geo’s Free Solo, featuring Alex Honnold. His work on Free Solo earned him an Emmy Award for Outstanding Creative Achievement in Interactive Media. His expertise has also made him a sought-after speaker, with appearances at major events like CES, Cannes Lions, and SXSW, as well as guest lectures at institutions like SCI-Arc and Otis College of Art and Design in Los Angeles.

Currently, Guillaume is the Chief Operating Officer and Executive Producer at LIGHT, a VFX and animation studio founded with acclaimed VFX Supervisor Antoine Moulineau. His leadership has fueled the studio's success on major projects, including John Wick 4, Ridley Scott’s Napoleon, high-profile commercials, and Daft Punk’s final music video, all while leveraging his vast network and deep production expertise.