CSC Australia chief information officer Ben Patey has ended a seven-year career as the IT services giant's head of IT to join the tertiary education sector.
Patey left the company last month to take up the role of solution delivery and operations associate director at the University of Newcastle.
His place has been immediately filled by Mary Siourounis, who was already working in the office of the CIO as a business analyst.
"We would personally like to thank Ben for the huge contribution he has made to CSC and welcome Mary to her new role," a CSC Australia spokesperson said in a statement.
Siourounis has spent her entire career at CSC, starting out as a graduate programmer in 1997 and climbing the ranks before being crowned CIO last month.
"Mary has been an integral part of the regional CIO team for the past three years," the spokesperson said.
Patey had served CSC since 2003, taking up the head of information technology post in 2007 before becoming chief information officer two years later.
CSC has grown significantly through acquisitions in the past year. The multinational bought out local giant UXC Limited for $428 million, software firm Xchanging for $846 million and announced a merger in May with Hewlett Packard Enterprise's services arm for $12.5 billion.