Systems Administrator

System Administrator

Job Location: South Australia (Edinburgh Parks or Flinders Street) or Melbourne

We work in a thriving sector – one that puts us at the forefront of exciting and meaningful work. Every day we push boundaries to produce some of the world’s most innovative and ground breaking technology. Individually we all contribute to our success. Collectively we make the impossible possible.

Recognised for delivering projects of global and national significance that help keep Australia safe, it is our shared passion that shapes our culture, and our people that make it a great place to work.

Who we are:

Join BAE Systems and you’ll be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow – shaping a safer future, for all of us.

From the depths of the ocean, to the far reaches of space – there’s no limit to where a career at BAE Systems could take you.

Role Description

As a Systems Administrator, you will be a key technical resource within Infrastructure Operations – Enterprise Services. You will work through rotations focusing on providing support, sustainment, delivery and administration of core infrastructure systems. This will include Linux Server (RedHat, OEL), hyper-converged platforms, fibre channel storage, and data protection operations.

The System Administrator is responsible for providing day-to-day support and maintenance of enterprise infrastructure services, ensuring incidents and service requests are resolved efficiently and within agreed timeframes. The role supports Linux environments, while improving service performance through automation, process improvement, and effective documentation. Working closely with cross-functional teams, the System Administrator helps deliver reliable, secure, and compliant infrastructure services that meet business and customer needs.

Core Duties:

• Install, configure, maintain, and optimise Linux server environments to ensure system reliability, performance, and availability.
• Monitor infrastructure and application health, proactively identifying and resolving incidents, performance issues, and system risks.
• Implement and maintain security controls, system hardening practices, patches, upgrades, and vulnerability remediation activities.
• Develop, maintain, and enhance solutions using automation tools such as Satellite, Ansible.
• Support the administration and maintenance of enterprise infrastructure platforms, including Dell VxRail, PowerStore, PowerScale, Commvault Simpana, Oracle Linux Enterprise, Oracle KVM, bare-metal servers, and cloud platforms such as Microsoft Azure.Collaborate with cross-functional teams to deliver infrastructure solutions that meet business and operational requirements.
• Contribute to containerisation and orchestration initiatives, supporting the deployment, management, and future roadmap of container platforms.
• Implement and manage monitoring and alerting solutions to ensure the ongoing health, availability, and performance of systems and services.
• Conduct incident diagnosis, troubleshooting, root cause analysis, and resolution of complex technical issues.
• Support security and compliance activities, ensuring adherence to organisational policies, industry standards, and regulatory requirements.
• Create and maintain accurate technical documentation, including system configurations, procedures, and operational standards.
• Share technical knowledge, mentor team members where appropriate, and contribute to continuous improvement initiatives across the infrastructure environment.
• Participate in infrastructure planning, technology upgrades, and lifecycle management activities to support business growth and operational excellence.

About YOU

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience).
• Significant experience in a similar Systems Administration role with strong expertise in Linux distributions (e.g. OEL, RedHat Satellite)
• Experience in managing VMware platforms including VSAN/ HCI
• Proficiency in Automation and scripting languages (e.g. Bash, Python, PowerShell)
• Familiarity with containerisation technologies (e.g. Docker, Kubernetes) is advantageous
• Knowledge of configuration management tools (e.g. Ansible, Puppet, SCCM)
• Excellent analytical and problem solving skills, with the ability to resolve complex technical challenges.
• Strong communication and interpersonal skills, with the ability to collaborate effectively across diverse teams.
• Ability to obtain and maintain an NV2 security clearance.

Why BAE Systems?

Here you’ll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work – this is a place where you can grow your career with confidence and be empowered to be your best. You’ll be recognised for your contribution and enjoy rewards tailored to what’s most important to you and your family – support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make.

A place where everyone can thrive

We’re committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do.

We support our veteran community through VetNet Australia, along with initiatives such as Reserve Service Leave, a Veteran Mentoring Program, and partner-supported programs.

We welcome applications from all candidates and strongly encourage Aboriginal and Torres Strait Islander peoples to apply.

We are proud to be recognised as an employer of choice for women by WORK180 and recipients of the Benchmarcx Top Employer for Candidate Experience Excellence 2026. As members of the Circle Back Initiative, we commit to responding to every applicant.

If you require any reasonable adjustments during the recruitment process, please contact our recruitment team to discuss the support you may need. You can also connect with us via Careers and Employment.

Security statement

Please note, as a defence security clearance is required for this role, applicants must be Australian citizens and either possess or be eligible to obtain and maintain one. Further information regarding security clearances.