Cyber Security Threat and Detection Analyst

Job Expectations

An exciting opportunity awaits for a passionate Cyber Security Threat Hunt & Detection Analyst to join our dynamic Cyber Security Practice team. In this pivotal role, reporting to the Executive Manager, Threat Hunt and Detection Engineering, you’ll be at the forefront of protecting Australia’s digital future.

A bit about your role

In this role, you will help strengthen nbn’s proactive cyber defence by conducting threat hunts and developing detection analytics. You will work within nbn’s converged all-hazards model and risk-based governance framework, using internal telemetry, external intelligence, and MITRE ATT&CK mapping to identify suspicious behaviours and emerging attack techniques. When threats are validated, you will escalate findings for rapid containment. You will also contribute to detection-as-code across SIEM, XDR, and EDR platforms by creating and refining detection rules, tuning alerts to reduce false positives, and updating runbooks and playbooks. Collaboration will be key as you partner with platform owners to validate data quality and coverage for priority signals and work closely with Incident Response to turn lessons learned into improved detections and automated enrichments. You will maintain audit-ready documentation and apply privacy-by-design principles when handling sensitive information. This position includes participation in a 24 / 7 on-call roster, providing expert guidance during and outside business hours to ensure timely containment, investigation, and recovery from cyber threats.

A bit about you

You have experience in threat hunting and detection engineering within modern security platforms and a strong understanding of adversary tactics and frameworks such as MITRE ATT&CK. You enjoy writing detection-as-code and automating processes, and you thrive in collaborative environments where clear communication is essential. You bring a problem-solving mindset and a passion for staying ahead of emerging threats, and you are comfortable working within a rotating on-call schedule.