Barclays Bank has appointed Commonwealth Bank of Australia CIO Michael Harte to take over as chief operations and technology officer.

Harte will replace the outgoing COO and CTO Shaygan Kheradpir, who announced his departure last November to join Juniper Networks as CEO.

Harte joined the Commonwealth Bank in 2006 as group executive of enterprise IT, with responsibilities for retail and institutional banking systems across the group, including operations, brokerage, wealth and asset management systems.

He led a major six-year programme to replace the bank's legacy core banking system, and has a been an advocate of cloud computing in the financial services industry.

"Given Michael's wealth of experience, he is ideally placed to lead the transformation of the Barclays Operations and Technology function and its continued focus on customer innovation, digital services and process automation," said Barclays CEO Antony Jenkins. "Technology is at the heart of our Transform agenda and will play a critical role in helping us achieve our goal of becoming the 'Go-To' bank."

Before joining the Commonwealth Bank, Harte was CIO at PNC Financial Services, and vice president, for information technology at Citigroup.

Commenting on his departure, Commonwealth Bank CEO Ian Narev said: "We greatly appreciate Michael's contribution to our IT strategy which has built a strong team and a pipeline of value-creating technology solutions which will benefit our customers and businesses for years to come."

Harte will replace Kheradpir, who joined US technology firm Juniper after a short tenure as CTO, having been appointed in March last year.