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Australian Energy Market Operator (AEMO) is seeking a senior Cyber Defence Tester to lead scoping and delivery of security testing across applications, infrastructure and cloud. You will coordinate with asset owners, report vulnerabilities with actionable fixes, and develop playbooks to strengthen the testing function.
Ideal candidates have offensive security credentials, hands-on testing across web apps, APIs, networks, AD and Azure, and experience in threat emulation and vulnerability
Division: Digital
Department: Cyber & Security
Reference number: 13318
Engagement type: Permanent
AEMO is Australia’s independent energy system and market operator and system planner. AEMO’s purpose is to ensure safe, reliable and affordable energy today, and enable the energy transition for the benefit of all Australians. Australian governments are now committed to a net zero economy for Australia by 2050 and our vision is to enable this. We have the once-in-a-lifetime opportunity to co-design the future of our energy systems, and our core values revolve around character, commitment, and connection. Join us as we contribute to this significant transition in the energy sector.
AEMO’s Cyber Defence team safeguards critical energy systems and market operations from advanced and emerging cyber threats. The team proactively identifies, assesses, and mitigates cyber risks through security testing, adversary emulation, threat intelligence, and vulnerability management. Further, Cyber Defence monitors, detects, and responds to incidents to protect operational integrity and continuity of critical IT systems.
The team collaborates closely with Australian Government agencies and energy‑sector bodies to uplift collective critical infrastructure security and partners with internal technology, engineering, and digital teams to embed secure‑by‑design practices and deliver cyber engineering and automation solutions. Together, these capabilities ensure AEMO remains secure, resilient, and well‑prepared in a rapidly evolving threat landscape.
As a senior member of the Cyber Testing and Vulnerability Management team, you will lead the scoping and delivery of security testing across applications, infrastructure and cloud, including research‑based testing of internally adopted and developed tooling. You will lift the capability of the testing function through peer review, playbook development and guidance to analysts, advise the vulnerability management and risk teams, assess complex vulnerability exceptions, and support incident response on an on‑call rotation.
The location of this role is flexible.
Please note that to be eligible for this role you require Australian citizenship and the ability to obtain and maintain a national security clearance.
At AEMO we are committed to creating a diverse and inclusive workforce. We welcome people of all backgrounds, including people with disabilities and neurodivergence and those who identify as Aboriginal and/or Torres Strait Islander. If you have any accessibility requireme nt s to support you during the application or interview process, simply let us know by emailing us a t talent@aemo.com.au