Per Fiserv's official management profile, Mr. Gelb earned his MBA from Cornell University and his BA from Oberlin College. He joined First Data (now Fiserv) in 2014 as an Executive Vice President and held a series of senior leadership roles, including longtime head of the Issuer Solutions business. Before First Data, he spent nearly two decades at Citi in senior leadership roles across global markets, last serving as Managing Director and Head of Citi's North America Treasury and Trade Solutions business.