He is the founder of the collective A2T3M. His professional career is atypical. He studied Electronic Engineering and Editing skills. His filmmaker career began with the association "Ciné Woulé" where he worked as a projectionist and audiovisual technician. Pursuing his dream to work in the film industry, he went to Canada to attend training to become a movie editor at the Quebec Film and Television School (ECTQ). Since then, he has worked for many production companies based in Paris. In March 2016, he edited the film PAJWE who wins, the first award of the "Festival du Prix de Court." Recently, he successfully passed his license for piloting professional drones. Right now, Willer is working on his new short film project, "The Anniversary."