Cyber Defence Analyst
Confirmed on the employer's own hiring board on Oct 29, 2026. First seen by Alion on Oct 27, 2026. Medibank scores A on the Alion truth index.
At Medibank Group, our brands, Medibank, ahm and Amplar Health, are united by a shared purpose: creating the best health and wellbeing for Australia. We're building a workplace where people can thrive, grow and make a meaningful impact, while helping shape a healthier future for our customers, patients and communities.
We’re looking for a Cyber Defence Analyst to join our Cyber Defence Team and support the day-to-day identification, investigation and response to security threats.
In this role, you’ll work across security alert analysis, incident investigation and threat hunting, applying your understanding of attacker behaviour and the MITRE ATT&CK framework to help identify and respond to potential threats.
Working alongside senior analysts and specialists, you’ll contribute to the effectiveness and reliability of the cyber defence function while continuing to develop your capability across security operations.
The Responsibilities:
Monitor, triage and investigate security alerts across endpoint, identity, network and cloud telemetry.
Perform initial incident analysis to understand scope, severity and potential impact.
Escalate complex or high-risk activity to senior analysts or incident responders with clear supporting evidence.
Apply your knowledge of attacker tactics, techniques and procedures when analysing alerts and incidents.
Use the MITRE ATT&CK framework to categorise activity, support investigations and understand attack progression.
Support the maintenance, improvement and tuning of existing detections.
Participate in threat hunting activities and supporting control uplift activities.
Maintain clear investigation notes, timelines and findings.
Collaborate with incident response, IT and security engineering teams as required.
About you:
A minimum of 4 years’ experience in security operations, cyber defence or a related role.
Experience with detection-as-code, threat hunting or working within a 24×7 SOC or enterprise security operations environment.
Strong experience performing security alert triage and incident investigations.
Experience in one or more of the following:
Microsoft Security Suite
Splunk / Falcon NGSiem
CrowdStrike Falcon Suite
Email, Endpoint, identity, network or cloud telemetry.
Working knowledge of common attack methodologies and adversary behaviour.
Familiarity with the MITRE ATT&CK framework and its use within security operations.
Experience using one or more SIEM or EDR platforms.
Strong analytical skills and attention to detail with ability to work independently on assigned tasks while following established processes.
Entry or intermediate security certifications such as Security+, BTL L1/L2 or GCIH are also desirable.
Why work for Medibank Group?
At Medibank Group, we're creating Australia's healthiest workplace by putting the health, wellbeing and success of our people at the centre of everything we do. We know that when people feel supported, connected and empowered to be themselves, they do their best work.
That's why we invest in flexible ways of working, career growth, wellbeing support and meaningful experiences that help our people thrive both professionally and personally.
To learn about what’s in it for you, visit https://careers.medibank.com.au/the-medibank-experience
Be Yourself. Belong Here
We’re committed to a workplace where everyone feels safe, supported, and free to be themselves. By embracing diverse perspectives, we challenge the status quo and uncover better ideas. You can confidently bring your whole self-because your unique voice is what makes us stronger.
We welcome and encourage applications from people of all backgrounds, identities and lived experiences, including Aboriginal and Torres Strait Islander peoples, people from culturally and linguistically diverse backgrounds, LGBTQIA+ communities, people with disability, neurodivergent people, and carers.
Our employee networks create space for connection, advocacy and allyship. We offer flexible ways of working to support inclusion, accessibility and wellbeing.
If you need adjustments or alternative formats at any stage of the recruitment or employment journey, we’re here to help. You can let us know directly in the application form, or if you’d prefer to discuss before applying, please reach out to us [email protected] or (03) 8622 5666. Learn more about our commitments and employee stories at https://careers.medibank.com.au/diversity-inclusion/ (please copy and paste the URL onto your browser)
Medibank proudly recognised as Best Enterprise Organisation, 2026 AFR BOSS Best Places to Work