Lead Systems Engineer - Linux Platform & Security Architecture

? Canberra, ACT (In office)

? NV2 Clearance Required

? Permanent Opportunity

The Opportunity We're looking for a senior Lead Systems Engineer to own the design, security, and operational performance of critical Linux platforms in a highly secure environment.

This is a hands-on leadership role focused on:

- Linux platform architecture
- Security hardening & compliance
- Infrastructure lifecycle management
- Reliability & operational excellence

You'll be the technical authority for Linux platforms, working closely with Kubernetes engineers and stakeholders to deliver secure, resilient, mission-critical infrastructure.

What You'll Be Doing

Architecture &

• Platform Ownership

- Lead the design and evolution of Linux-based infrastructure
- Define platform standards, operating system baselines, and lifecycle strategies
- Make key architectural decisions across secure on-premises environments
- Drive continuous improvement and platform modernisation

Security &

• Compliance

- Lead Linux hardening initiatives aligned to the Essential Eight
- Manage patching, privileged access controls, backups, and secure configurations
- Ensure infrastructure remains compliant, auditable, and resilient
- Champion security best practices across the platform

Operations &

• Reliability

- Oversee system build, release, maintenance, and decommissioning activities
- Lead troubleshooting for complex infrastructure incidents
- Establish standards for change control, documentation, and operational readiness
- Improve platform performance, stability, and availability





Leadership &

• Collaboration

- Mentor engineers and promote engineering excellence
- Work closely with Kubernetes and platform engineering teams
- Provide expert technical guidance to stakeholders and leadership
- Support secure identity and access solutions across Linux environments

What You'll Bring

Essential

- Extensive experience managing and architecting Linux platforms
- Strong background in infrastructure security and system hardening
- Experience working in secure, regulated, or mission-critical environments
- Expertise in platform lifecycle management and operational support
- Scripting and automation skills (Bash and/or Python)
- Ability to lead technical direction and influence engineering outcomes

Desirable

- Windows Server and Active Directory exposure
- Identity and access management experience
- Kubernetes or platform engineering experience
- Defence or Government sector experience

Why Apply?

- Own and shape critical Linux infrastructure
- Work within a highly secure, mission-focused environment
- Influence architecture, security, and platform strategy
- Join a team that values technical leadership and engineering excellence

Apply Now

Submit your resume to apply.

For a confidential discussion, contact:

Katrina Gabriel

? 0489 923 756

✉️ [email protected]

Australian Citizenship and an active NV2 Security Clearance are essential.

Candidates will need to be willing to undergo pre-employment screening checks which may include, ID and work rights, security clearance verification and any other client requested checks.

📌 Lead Systems Engineer (Canberra)
🏢 Whizdom
📍 Canberra