Network Systems Administrator

About the Job

We're looking for a skilled Network Systems Administrator to design, maintain, and secure the network infrastructure supporting our critical software solutions. In this role, you'll work under general direction to manage and optimise network systems, ensuring performance, security, and compliance with strict protocols. You'll collaborate with cross-functional teams to troubleshoot issues, implement automation, and drive continuous improvements in network reliability and resilience.

What You'll Do

• Design, maintain, and optimise secure, scalable, and high-performance network and system infrastructure to support critical software development and deployment.
• Monitor, troubleshoot, and resolve issues across infrastructure components to ensure resilience, availability, and performance.
• Contribute to the enhancement of workflows, documentation, and procedures that support operational excellence and service continuity.
• Plan and manage your own workload across both project and business-as-usual (BAU) activities, ensuring alignment with deadlines and priorities.
• Ensure compliance with stringent security and governance standards, proactively identifying and addressing risks.
• Support the adoption of automation and modern infrastructure practices to drive efficiency and reduce manual effort.

What You'll Bring

• Excellent analytical and problem-solving skills, with the ability to work independently under general direction.
• Demonstrated experience in network and systems administration within secure or high-compliance environments.
• Proficiency in managing infrastructure technologies such as compute, storage, backup, and virtualisation platforms (e.g., Linux, vSphere, NSX).
• Hands-on experience with automation and scripting tools (e.g., Ansible, PowerShell, Bash, Terraform).
• Solid understanding of Windows Server environments, including Active Directory
• Hands-on experience with configuring and maintaining network equipment such as switches and firewalls.
• Strong understanding of infrastructure security principles and compliance requirements.
• Clear written and verbal communication skills, with a collaborative and proactive working style

Qualifications

Tertiary Education Information Technology or equivalent experience.

Security Clearance

Applicants must be Australian citizens and eligible to hold and maintain an Australian Defence Security Clearance. Defence experience is desirable. More information:

About the Company

For over 25 years, Consunet has grown as a sovereign enterprise, delivering leading and trusted cyber and spectrum security solutions with agility, precision, and purpose - protecting what matters most and safeguarding our national interests. Our expertise across Information Warfare, Spectrum Management, Cyber & DevSecOps, and Logistics empower us to shape the future of cyber and spectrum security - both in Australia and internationally. With a legacy built alongside Australia's Defence and Intelligence communities, we bring the highest level of assurance and trust to everything we do. As we expand into global markets, we remain grounded in our values: trusted, sovereign, excellent, leading, and sustainable. We also prioritise transparency and accountability - standing by our commitments and delivering accordingly.

Our mission is to grow our capability to solve our customers' most complex problems with speed, efficiency and reliability. To learn more about Consunet, please visit:

Why join us?

• Join a sovereign Australian enterprise driving innovation to protect national interests, offering meaningful work, career growth, and a supportive, flexible environment.
• Consunet is headquartered in the Adelaide CBD with operations in Adelaide, Edinburgh (SA) and Canberra.
• We encourage applications from veterans and reservists—your experience is valued here. We support veterans through recruitment, flexible work, reservist leave, a Veterans Policy, dedicated points of contact internally, and an EAP specialising in defence. We invite veterans to voluntarily disclose their prior military service.
• We are committed to creating a diverse and inclusive workplace.
• People of all genders, cultures, and backgrounds are encouraged to apply.
• Consunet offers flexible work and an inclusive environment to support our people to thrive, with an EAP service which has specialist defence experience to support wellbeing.

Benefits working for Consunet

• Be part of a workplace that values innovation, quality, and work-life balance.
• Enjoy a flexible, inclusive, and friendly work environment.
• Access competitive pay and salary packaging options.
• Take advantage of parental leave and our Study Loan Scheme.
• Build your career with training, development, and clear pathways for progression.
• Work with cutting-edge technology, research, and agile project management.
• Benefit from mentoring and support by experienced team members.

To Apply

Click "Apply Now" and attach your CV along with a Cover Letter summarising your experience.