Doug McBirnie, senior actuary at Accurium, will step into the role of general manager. He will continue to be the signing actuary for the company.

Ms Williams has been with Accurium for five years, starting as chief executive when the company was branded Bendzulla Actuarial.

She oversaw the acquisition of Bendzulla Actuarial by Challenger in 2013, and the rebranding to Accurium in 2014.

“This is a great opportunity for Doug and for the business. I’ve done what I needed to do to see through the changes we’ve experienced,” Ms Williams said.

Ms Williams was also integral to Accurium’s recent lobbying to retain the status quo for actuarial certificates after Treasury consulted on changes to the requirements for obtaining actuarial certificates

It is expected that she will remain within financial services.