Senior Security Engineer
Location: Either Melbourne or Canberra based. Predominantly onsite role. Requires NV2 clearance (TSPV uplift supported) and OSA required or willing to obtain it. Must be an Australian Citizen holding an active NV2, willing to uplift to TSPV, and have or be willing to obtain OSA.
Your New Role and Responsibilities
This role sits within Leidos' Mission Software System's capability and reports to the Security Lead. You will work independently within your scope while collaborating closely with broader engineering teams.
As a Senior Security Engineer, you will contribute to the design, delivery and uplift of security engineering and operations functions across the environment.
Do Work That Matters
* SIEM/SOAR platform management (e.g., Splunk): onboarding, health checks, patching, maintenance, and incident resolution
* Security engineering across endpoint, network, gateway and related technologies
* Vulnerability management tooling, integration and continuous improvement
* Support incident response activities using enterprise tooling
* Manage data ingestion, build and optimize search queries, develop custom dashboards and alerts for monitoring, ensuring system reliability, security, and scalability
* Provide trusted security engineering advice to internal stakeholders
* Develop and uplift security operations system requirements
* Participate in change reviews and approvals
* Build and maintain stakeholder relationships with internal teams and external partners
What You'll Bring to Make an Impact
Ideally you have experience in Security Engineering or Security Operations, with a strong hands‑on focus.
Desired experience includes:
* EDR/Device Control/Application Control (e.g., Trellix, Carbon Black)
* SIEM/SOAR platforms (e.g., Splunk)
* Vulnerability management solutions
* Multi‑Factor Authentication (MFA)
* Identity & Access Management (IAM)
* Privileged Access Management (e.g., CyberArk, BeyondTrust)
* Hardware Security Modules (HSM)
* Strong engineering mindset and problem‑solving approach
* Ability to operate independently and collaboratively
* Passion for cyber security and continuous improvement
* Motivation to support capability uplift and mentor junior team members
Additional Information
To be eligible, you must be an Australian Citizen holding an active NV2 clearance, willing to uplift to TSPV, and have OSA or be willing to obtain it.
Commitment to Non-Discrimination
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
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