On 23 August 2021, Worley Limited announced the appointment of Tiernan O'Rourke as Worley's new Chief Financial Officer (CFO). Tiernan will commence as CFO on 29 November 2021 and will be based at Worley's headquarters in North Sydney, NSW, Australia. Charmaine Hopkins, who is Worley's CFO (Interim), will support Tiernan in addition to resuming her role of Executive Group Director, Corporate Finance.