Profectus is seeking experienced Systems Administrators (Linux) to support the delivery and sustainment of secure ICT environments within Defence environments. You will be responsible for the design, configuration, documentation, operation, and support of Red Hat Enterprise Linux (RHEL) systems, working alongside peers of differing specialisation within a wider systems team. It is a hands‑on role in a highly secure workplace where reliability, security, and performance matter.

Key Responsibilities

Deploy, support, and maintain RHEL components across physical and virtual infrastructure

Manage and document the configuration of RHEL systems to defined baselines

Manage virtualisation tools such as VMware and configure virtual machines supporting critical applications

Troubleshoot diverse and complex faults, engaging constructively with peer teams to reach resolution

Contribute technical designs and content to knowledge repositories and provide input to policy, process, and procedures

Apply ITIL Service Management principles under direction, including participation in Change Advisory Boards (CAB), implementation of approved changes, and use of service management toolsets for tasking and scheduling

Provide platform deployment and support to designated activities, which may include planning, out of hours support, and some shift work

Handle classified information in accordance with Commonwealth policy, including the Defence Security Principles Framework (DSPF) and the Australian Government Information Security Manual (ISM)

Work closely with other technical teams and, where directed, contribute to cross-skill,



cross-functional, or project teams

Required Experience

Red Hat Certified System Administrator (RHCSA) certification, or a tertiary degree or vocational qualification in a closely related discipline

5+ years of industry experience in systems administration, relevant military experience, or a combination of the two

Proven expertise administering RHEL, including system configuration and support across development and production environments

Solid understanding of virtualisation technologies such as VMware

Demonstrated ability to communicate effectively with technical peers and frontline IT leadership

Ability to operate effectively both independently and within integrated Commonwealth teams

Desirable Experience

ITIL certification

Knowledge of storage and backup architecture and management

Experience with VMware, ServiceNow, and CrowdStrike Falcon LogScale

Exposure to Windows environments alongside Linux

Experience working within Defence environments or on nationally significant programs

Security Clearance Requirements

Must be an Australian Citizen

Must have a current AGSVA NV1 Security Clearance

NV2 Security Clearance is preferred

Working Arrangements

Onsite

Canberra, ACT

Some travel may be required as part of this engagement

Why Profectus Profectus partners with Government and industry organisations to deliver trusted cyber, ICT, and digital capability across complex and highly regulated environments. We take a relationship-driven approach and support our consultants throughout the lifecycle of their engagement.

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📌 Systems Admin (Linux) (Canberra)
🏢 Profectus
📍 Canberra