Job Description
Be the driving force at the centre of our client's Australian expansion.
Gain global exposure and work closely with this leading U.S. company.
Grow your team as you embed into this long-term leadership position, shaping System architecture and best practice in Australia.
About the Client
Our client is a rapidly growing technology company at the forefront of secure data management and enterprise software engineering.
Founded within the past decade, the organisation has built a strong reputation for delivering mission-critical technology solutions across defence, government, and national security sectors.
With a culture defined by innovation, integrity, and technical excellence, they are expanding their Australian operations to support projects that strengthen the nation's digital sovereignty and resilience.
The team values ownership, curiosity, and trust, and they're looking for professionals who thrive in high-impact, security-conscious environments where technology truly makes a difference.
About the Role
The Senior Systems Engineer 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.
In this role, you will:
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 likePrometheus/Grafana),and troubleshooting for containerised applications.
About you
We're looking for an experienced IT qualified passionate about secure systems in defence contexts.
You'll thrive here if you enjoy technical leadership, problem solving, and contributing to meaningful missions.
8+ years of relevant experience in system administration or IT infrastructure
Relevant tertiary qualification or equivalent knowledge gained through experience
Active NV2 security clearance (required)
Proven expertise in Active Directory and Linux system administration
Strong troubleshooting, analytical, and communication skills
Highly Regarded
Networking experience (e.g., CCNA/CCNP level or practical equivalents in firewalls, routing, VLANs)
Proficiency in scripting (e.g., PowerShell, Bash, Python)
Experience with Kubernetes in on-premises environments
Leadership experience managing or mentoring technical teams
Familiarity with ASD Essential Eight or defence compliance frameworks
What's on offer
Attractive salary based on qualifications, experience and achievements
Superannuation
Annual performance bonus
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
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📌 Senior System Engineer - Linux Environment (Canberra)
🏢 Vertical Scope Group
📍 Canberra