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Principal System Administrator

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Bluestaq

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Location:
Australia , Brisbane or Canberra

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Category:
IT - Administration

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Contract Type:
Employment contract

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Salary:

Not provided
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Job Description:

The Principal System Administrator will lead the design, deployment and maintenance of secure data management platform in defence environments. This role encompasses full system lifecycle management, user support and technical leadership to ensure secure, compliant and high performing IT operations in defence aligned environments.

Job Responsibility:

  • Architect and maintain a resilient Linux server environment
  • Administer Active Directory, Group Policy, identity and access management (IAM) and network configurations
  • Configure and manage firewalls, routers and switches, including VLANs, DNS and IAM integration
  • Lead ongoing system maintenance, software installation, configuration, integrated testing and troubleshooting
  • Assist end users by addressing technical inquiries and resolving access or configuration issues
  • Oversee patch management, configuration compliance, change control and vulnerability mitigation
  • Implement system hardening in alignment with the ASD Essential Eight and conduct regular audits
  • Liaise with internal teams and external stakeholders
  • provide technical updates and recommendations to leadership
  • Maintain production Kubernetes (K8s) clusters across multiple on-premises environments, encompassing tasks such as deployment, scaling, monitoring (using tools like Prometheus/Grafana), and troubleshooting for containerised applications

Requirements:

  • 5+ years of relevant experience in system administration or IT infrastructure
  • Proven expertise in Active Directory and Linux system administration
  • Strong troubleshooting, analytical, and communication skills
  • Willingness to travel within Australia to customer and partner locations, including secure government or defence sites, and occasional travel to Bluestaq offices in the United States for collaboration or project work
  • You must also be an Australian citizen, eligible to obtain and maintain an Australian Government NV2 security clearance

Nice to have:

  • Relevant qualifications or equivalent hands-on experience
  • Networking experience (e.g., CCNA/CCNP level or practical equivalents in firewalls, routing, VLANs)
  • Experience with Kubernetes in on-premises environments
  • Proficiency in scripting (e.g., PowerShell, Bash, Python)
  • Leadership or mentoring in technical teams (or demonstrated potential to grow into this)
  • Familiarity with ASD Essential Eight or defence compliance
What we offer:
  • Superannuation
  • Annual performance bonus
  • Private health cover allowance
  • Health/wellness allowance
  • Professional subscription
  • Salary sacrifice and salary packaging options
  • Additional 1 week of annual leave per year = 5 weeks per year
  • Other leave in accordance with the National Employment Standards and state long service leave legislation

Additional Information:

Job Posted:
January 22, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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