Gaylene Callaghan
Senior Application Architect @ Fiserv
About Gaylene Callaghan
Gaylene Callaghan is a Senior Application Architect at Fiserv in Melbourne, Australia, with over 35 years of experience in the information systems field. She has held various roles at prominent organizations, including First Data Corporation and BankSA, and specializes in improving procedural, architectural, quality, and technology aspects of information systems.