Sebastian's earlier narrative feature film work includes, Blood And Rain, as well as The Squad, both of which earned him Colombian Academy Awards (Premios Macondo Awards). Sebastian's documentary work includes: Foreign Wars, The Boy From Medellin, and Diamond Hands. Television series he has edited include: Wild District, Green Frontier, and Ruido Capital.

Sebastian's more recent feature work includes the acclaimed films: Pickpockets, and Laura Mora's multiple award-winning, The Kings Of The World.