It takes superhuman ambition and supersize resources to challenge the likes of Amazon.com and Costco Wholesale Corporation. So why not a superhero-inspired workplace? When Jet.com was still based at an incubator, the e-commerce start-up gave the names of different superheroes to the company’s various teams. “That would be something good to keep,” Interior Architects principal and design director Julio Braga said to himself when conceiving the company’s first real headquarters, in a new building on the Hudson River in Hoboken, New Jersey.