Rubik has been modeling in London, Milan, New York, and Paris throughout the 2000s. Rubik's select runway appearances include the Haute Couture collections of Atelier Versace, Chanel, Christian Dior, Christian Lacroix, Jean-Paul Gaultier, and Valentino. She has walked the runway for the prêt-à-porter collections of Alexander McQueen, Alexander Wang, Anthony Vaccarello, Balenciaga, Balmain, Burberry Prorsum, Chloé (5 seasons), Emanuel Ungaro, Emilio Pucci, Fendi (4 seasons), Gucci (4 seasons), Isabel Marant, Kanye West's DW Kanye West line, Michael Kors, Prada, and Tom Ford, among others.