Steven Tristan Young is the Chief Marketing Officer of Poshmark, where he leads growth, product, and brand marketing. Previously, Steven was the Vice President of Growth at GrubHub, where he managed the company’s customer and market-level growth while helping shape the company's brand and customer messaging platforms. Prior to GrubHub, Steven held leadership positions at DIRECTV, American Express, Endurance International Group, and Puma Sports. At American Express, Steven led the marketing efforts for the company’s flagship Black and Platinum Card portfolios, driving the brand design, customer positioning, and marketing communications strategy. Steven received his undergraduate degree from the Wharton School at the University of Pennsylvania and is also an alumnus of Harvard Business School.