"Kaylene is a recognised leader in the industry and brings a wealth of experience that drives customer innovation, growth, and talent inclusivity in an agile environment," said Capgemini Asia Pacific Strategic Business Unit said Olaf Pietschner, CEO of Capgemini's Asia Pacific strategic business unit CEO Olaf Pietschner.
"I am delighted to welcome Kaylene to Capgemini to lead our talented team into the next chapter of growth in Australia and New Zealand, and help support our ambition in the Asia Pacific region to create a sustainable and inclusive future for our clients, people and communities."
Pietschner was O'Brien's predecessor as ANZ managing director.
O'Brien joins Capgemini after almost 25 years at Deloitte, most recently serving as managing partner of Deloitte Consulting Australia.
Before joining Deloitte as a technology consultant, she spent two years with Andersen Consulting as a consultant.
O'Brien holds a Bachelor of Business (Management) from Monash University, and a Post Graduate Diploma in Information Systems from RMIT. She is a member of Chief Executive Women.