Greg is the Senior Director of PayStream Advisors, where he is responsible for overall management of PayStream, including managing staff and operations, as well as relationships with vendors and corporate clients. Greg is also a Director in Levvel’s Payments Practice where he leads client engagements and builds relationships with customers ranging from top-10 banks to start-ups. Prior to Levvel, Greg spent 7 years at Bank of America, most recently leading business-efforts in the emerging payments team, leading the launches of Apple Pay, Android Pay and Samsung Pay. Prior to Bank of America, Greg held a variety of financial services roles at eSpeed / Cantor Fitzgerald and Reuters. Greg holds an M.B.A. from the Darden School at the University of Virginia and a B.S. from the College of William and Mary and resides in Charlotte, NC with his wife and three children.
A thought leader in the area of procurement and supply management, Constantine has over 20 years of experience, playing strategic roles in a wide spectrum of organizations related to consulting, product marketing, product development and market research. Throughout his career, he’s engaged business leaders and the broader analyst and technology community with strategic content, speaking engagements, research, webinars, and industry articles. Constantine is focused on analyzing technology business trends and promoting leading technology around procurement and supply management.