System Administrator (AW002)

IAG Defence and National Security; Adelaide; On-site; AUD 80,000 - 105,000; Full time

Job summary

IAG Defence & National Security in Australia is seeking an experienced System Administrator to support critical ICT environments in a secure setting. The role focuses on Linux and Windows administration, incident response, and ensuring available, well-documented systems within a defence context.

The ideal candidate holds an NV1 security clearance and has hands-on experience with Red Hat Linux and Microsoft Windows, network infrastructure, and secure ICT operations.

Qualifications

• Current NV1 Security Clearance.
• Experience administering Red Hat Linux and Microsoft Windows environments.
• Strong knowledge of network infrastructure, system integration and troubleshooting methodologies.
• Understanding of Information Assurance, cyber security principles and secure ICT operations.
• Excellent communication skills with the ability to engage both technical and non-technical stakeholders.

Responsibilities

• Provide Level 1 and Level 2 system administration support across Linux and Windows environments.
• Install, configure, maintain and troubleshoot hardware, software and network infrastructure.
• Support systems and ensure the ongoing availability and performance of critical ICT services.
• Perform system monitoring, fault diagnosis, performance tuning and recovery activities.
• Maintain system documentation, configurations and software deployments.

Skills

Linux administration

Windows administration

Network infrastructure

System integration

Cyber security principles

Stakeholder communication

Job description

About Us

IAG Defence & National Security (DNS) is part of IAG, a specialist advisory firm supporting complex infrastructure, Defence and national security programs across Australia. Our DNS team works closely with Commonwealth agencies and industry partners to deliver specialist expertise into nationally significant programs. Our success depends on our ability to identify, engage and mobilise highly specialised talent quickly and effectively. IAG is recognised as Veteran Friendly Employer under the Veteran Employment Program.

The Role

We are seeking an experienced System Administrator to support and maintain critical ICT environments within a secure operational setting. This role will suit someone with strong infrastructure and systems administration experience who enjoys troubleshooting complex technical issues and ensuring reliable system performance.

Key Responsibilities

• Provide Level 1 and Level 2 system administration support across Linux and Windows environments.
• Install, configure, maintain and troubleshoot hardware, software and network infrastructure.
• Support systems and ensure the ongoing availability and performance of critical ICT services.
• Perform system monitoring, fault diagnosis, performance tuning and recovery activities.
• Maintain system documentation, configurations and software deployments.

About You

• Current NV1 Security Clearance.
• Experience administering Red Hat Linux and Microsoft Windows environments.
• Strong knowledge of network infrastructure, system integration and troubleshooting methodologies.
• Understanding of Information Assurance, cyber security principles and secure ICT operations.
• Excellent communication skills with the ability to engage both technical and non-technical stakeholders.

Additional Information

• Full-time onsite role based in ACT or SA
• Opportunity to support complex Defence and national security programs.
• Work alongside highly skilled technical and engineering teams.

What We Offer

With offices in Perth, Brisbane, Melbourne, Sydney and Canberra, we’re a tight-knit team working across some of Australia’s most critical Defence and national security programs. We value expertise, collaboration and flexibility, providing our people with opportunities to contribute to meaningful and technically challenging projects. We can offer great work, great people, great culture, great conditions, and an all-round great time whilst you continue building a rewarding career in the Defence and national security sector. As part of IAG, you’ll be joining a team of more than 250 professionals.

Most opportunities advertised by IAG Defence & National Security are subject to client approval, security validation and contractual confirmation. Employment or engagement will only be offered following successful client acceptance and completion of all required pre-engagement checks and onboarding activities.