ASX CIO Tim Thurman quits

The Australian Securities Exchange is on the hunt for a new chief information officer after Tim Thurman announced his decision to depart the organisation and return to Canada.

Thurman, whose resignation was announced internally today, ends four-and-a-half years at the ASX, which he joined in 2012 from Canada and a two-year period as the technology boss for Credit Suisse.

Thurman is returning to Canada for "family reasons", the ASX said, and has already accepted an undisclosed new position.

He will depart the ASX around March next year following delivery of the stock exchange's new derivatives trading platform in February.

“Tim has made a significant contribution to ASX at a critical time of growth and innovation over the past four-and-a-half years,” ASX CEO Dominic Stevens said in a statement.

“We thank him and wish him well for the future.”

Thurman has been overseeing a $50 million, four-year systems overhaul that will see all the technology underlying the ASX's trade and post-trade systems replaced. The program is currently about 18 months in.

The ASX intends to use blockchain technology as a replacement for its core CHESS post-trade cash equities system.