Prior to founding Residency Unlimited with Nathalie Angles, Sebastien worked at Location One, as Assistant Director of the international residency program from 2004 to 2009. Since 2001, Sebastien has been closely involved in the development of the artist-run organization Flux Factory, when he moved to New York. Sebastien has been closely associated to the organization’s exhibition programming. He collaborated in group projects organized by Flux Factory with institutions such as the Queens Museum of Arts and the New Museum.

After completing a preparatory year at the Academie Julien (ESAG) in 1997, Sebastien received a BFA from the Ecole de Beaux-Arts de Montpellier District in Montpellier, France (EBAMDA).