Senior public servant Kathryn Campbell has quit her $900,000-a-year job in the defence department after her suspension following damning revelations about her role in the illegal robodebt scheme.
The department confirmed on Monday it had accepted Ms Campbell's resignation effective from July 21, a day after news she was suspended without pay was made public.
Ms Campbell became an adviser on the AUKUS security partnership in June 2022.
The senior bureaucrat was suspended without pay from that role on July 10, three days after the public release of the robodebt royal commission's findings.
The commission singled her out for criticism in its report, finding she misled cabinet over the illegal scheme.
It found Ms Campbell pushed ahead with the scheme because then-minister Scott Morrison wanted it pursued and the government needed savings for the budget.
