By Stuart Condie


SYDNEY--The chief executive of Optus, the Australian subsidiary of Singapore Telecommunications, resigned following a network outage in which millions of customers including hospitals and government departments lost services for several hours.

Singtel on Monday said that Kelly Bayer Rosmarin would be replaced on an interim basis by the company's chief financial officer, Michael Ventner. Former Optus business MD Peter Kaliaropoulos will take up the new role of chief operating officer, it added.

Singtel, which said Optus would conduct a global search for a permanent CEO, announced Bayer Rosmarin's resignation three days after she appeared before Australian lawmakers investigating the Nov. 8 outage and Optus's response to it.

"Having now had time for some personal reflection, I have come to the decision that my resignation is in the best interest of Optus moving forward," Bayer Rosmarin said.


Write to Stuart Condie at stuart.condie@wsj.com


(END) Dow Jones Newswires

11-19-23 1918ET