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Cyber Security Engineer

At Harrison McMillan, our mission is simple: to change lives, one placement at a time. As a trusted recruitment partner to government and industry, we connect exceptional people with opportunities where they can make a genuine impact.


Harrison McMillan is seeking an experienced Cyber Security Engineer to support and uplift cybersecurity operations, Microsoft Sentinel capability, and security tooling within a federal government environment.


This is a long-term 12-month contract with 2 x 12-month extension options and is based in ACT. Hybrid working arrangements are available.


A Negative Vetting 1 security clearance is strongly preferred; however, candidates holding a Baseline security clearance with the ability to obtain and maintain NV1 will also be considered.


Key Responsibilities:

  • Configure and troubleshoot log source integrations into Microsoft Sentinel and related SIEM platforms.

  • Develop alerting rules, threat response playbooks, and KQL queries to support investigations and threat hunting.

  • Administer and maintain cybersecurity tooling including SIEM, WAF, DLP, vulnerability scanners, proxy solutions, and application whitelisting.

  • Support cyber uplift initiatives and ensure alignment with ISM, PSPF, and Essential Eight frameworks.

  • Mentor junior team members and collaborate across business and government stakeholders.


Essential Criteria:

  • Minimum 5 years’ experience with Microsoft security technologies including Sentinel, Intune, Entra Active Directory, Purview, and Microsoft 365.

  • Proven experience maintaining, operating, and automating SIEM technology.

  • Strong experience in team collaboration, business engagement, and cyber uplift projects.

  • Experience implementing ISM controls, PSPF, and Essential Eight strategies.

  • Relevant industry certifications.


Desirable Criteria:

  • Experience with incident response processes.

  • Experience across broader cybersecurity domains including SecOps and GRC.


RFQ Closing Date: Tuesday, 11 August 2026, 11:59pm Canberra time


Apply now or contact the Harrison McMillan team for a confidential discussion.


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