JPMorgan alum replaced Guy Chiarello as chief operating officer, with the latter moving to a vice chair role at the payments processor.

Takis Georgakopoulos has been named the new chief operating officer for financial technology provider Fiserv Inc.

Milwaukee-based fintech company Fiserv has promoted executive vice president Takis Georgakopoulos to the role of chief operating officer.

After working at big banks including Citigroup and UBS, followed by a stint as information security for consumer goods giant Procter & Gamble, Kostas Georgakopoulos got an offer he couldn't refuse ...

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