Axa Rosenberg head of investments Doug Burton has moved to the firm's head office in California following strategic management changes.
Burton was responsible for the Australian and New Zealand region and worked in Axa Rosenberg's Sydney office for three years.
His new job in the US will be as chief executive and global head of clients.
Kathryn McDonald has been hired for the Sydney-based job of head of investments, having relocated from the firm's head office.
Head of sales and marketing Ian Webber will take on additional responsibilities as co-head of the Sydney office along with McDonald.
"We like to rotate our staff around the world. People from other regions can facilitate and share ideas between each of our global offices," Webber said.
"Australia and New Zealand are both important markets for us and we remain committed to the region."
The firm opened its Sydney office in 2005 and has about $3 billion in funds under management in Australia.