Largo started his career as an Account Executive Junior at Euro RSCG Madrid. He went on to explore the world of Digital Marketing, working at both Fagor America and Bodaclick.com. This was followed by a short gig as a professor at ADM Business School where he taught about the "lean startup" method. Shortly afterwards be became an investor and advisor to Selltag. He spent the next 5 years honing his knowledge of the ticket industry as VP of Marketing and Product for Ticketbis, a company that was purchased by eBay to help StubHub grow in foreign markets. He spent the next 3 years as a member of Founders of the Future before becoming CEO and co-founder of both Hellotickets and Tracer.