A senior executive is leaving Metavante Technologies Inc. after its recent purchase by Fidelity National Information Services Inc.

Donald W. Layden Jr., who was Metavante's senior executive vice president of corporate development and the president of its international group, said Friday that he has taken a job at Warburg Pincus.

Layden is advising the New York private-equity company's technology, media and telecommunications group on companies involved in payments and transaction processing.

He has also joined the Milwaukee law firm Quarles & Brady LLC as a partner in the firm's corporate services practice. Metavante was based in Milwaukee.

Fidelity National, a Jacksonville, Fla., technology company, completed the $4.2 billion purchase of Metavante this month and is now calling itself the world's largest provider of banking and payments technology.

Other top Metavante executives are staying with the post-merger company.

Frank Martire, who was Metavante's chairman, is now Fidelity's president and chief executive.