Schwarz signed with Premier Model Management in 2008. He has appeared in numerous campaigns and catwalk shows for brands such as D&G, Pepe Jeans, Missoni, Armani jeans and Colcci. He also shot a campaign with Brazilian model Gisele Bündchen and has worked with photographers such as Mario Testino .[3] He also starred in a Calvin Klein ad campaign that was controversially banned for depicting a threesome shot by Steven Meisel.
In 2009, he was named the 4th most successful male model in the world by Forbes magazine.[4] In addition, he has also appeared in publications such as 10, Vogue, GQ and OUT. He is good friends with Sean O'Pry.[citation needed]