Karolin Callahan is a Payments Industry Executive with expertise in driving operational efficiencies and building high-performing teams. They served as the Director of Client Experience, Boarding & Operations at First Data Corporation from 2014 to 2021 and held the role of Operations Manager. Currently, Karolin is the VP of Client Support & Operations at Fiserv. They earned a degree from Ryerson University between 1992 and 1996.
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