Fiserv Inc. of Brookfield, Wis., said Monday that it has rehired Michael J. Kelly as the head of its Accel/Exchange debit network unit.

Mr. Kelly was previously the director of business development for Accel/Exchange, which he left in 2005 to found ePayments Consulting Group LLC, where he was the president and chief executive and helped financial companies develop and implement their payment strategies.

Kevin Gregorie, the president of Fiserv's electronic funds transfer business unit, said in a press release that Mr. Kelly has a "strong knowledge of the network marketplace."