Title Head of Digital Strategy Company Under Armour Bio Jack joined Under Armour in 2015 as Sr. Director, Global Consumer Engagement. In this role, he leads communications planning and social strategy for the UA brand, leveraging a deep understanding of emerging media platforms and behaviors to innovate how the brand connects with consumers. Prior to working at Under Armour, Jack spent 12 years at Viacom, where he held a number of positions focused on digital content, social media, and marketing strategy for both Nickelodeon and MTV.