At a Glance
- Tasks: Lead and mentor a team while building and maintaining Linux systems in a dynamic environment.
- Company: Join Expert360, a leader in connecting top professionals with impactful work.
- Benefits: 12-month contract, competitive pay, and opportunities for professional growth.
- Other info: Work in Canberra or Sydney with a focus on innovation and collaboration.
- Why this job: Make a difference in Defence ICT modernisation while working with cutting-edge technology.
- Qualifications: Extensive RHEL experience and strong communication skills required.
The predicted salary is between 118800 - 145200 $ per year.
Expert360 empowers more than 42,000 elite professionals around the world to find great work and be successful. We believe in choice, flexibility and empowerment. Come and join us in defining and bringing to life the future of work!
We're looking for a senior Linux engineer to join one of the more significant Defence ICT modernisation programs running in Australia right now. This is a lead role — hands‑on technical work combined with mentoring a small team of Linux SMEs in a classified, highly regulated environment.
About the role:
- You’ll be building, hardening, and maintaining Linux systems that form part of a complex, mission‑critical ICT infrastructure.
- You’ll work across hyper‑converged and distributed environments, integrate applications with Linux operating systems, and develop reusable automated builds that make the team's life easier.
- This isn’t a role where you can rely on standard playbooks and stable connectivity. You’ll be designing solutions, building POCs with system architects, and writing SOPs that others actually use.
- At lead level you’re also expected to mentor junior engineers and help shape how the team works.
Day to day:
- Build, implement, and harden Red House Enterprise Linux systems (RHEL 7–9)
- Develop and maintain automated build libraries using Ansible and GitLab
- Diagnose and resolve complex Linux SOE issues across distributed environments
- Integrate ICT infrastructure applications with Linux operating systems
- Implement security hardening in line with Defence requirements including the ISM
- Collaborate with system architects on POCs and solution designs
- Write and peer review SOPs, build guides, and technical documentation
- Mentor Linux SMEs and contribute to the team’s overall technical capability
You’ll need:
- Solid hands‑on RHEL experience across versions 7 through 9 — this is non‑negotiable
- Working knowledge of Ansible, GitLab, and YUM
- Experience with Linux in hyper‑converged infrastructure and distributed environments
- Previous Defence experience as a Linux technician — the environment and its constraints matter here
- Ability to translate requirements and frameworks into practical solution designs
- Strong written communication — your SOPs need to work without you standing next to someone explaining them
- Current NV2 clearance and Australian citizenship
It'd be a bonus if you have:
- Previous Defence experience — weighted heavily if you have it
- Experience working within a DevSecOps framework
- Familiarity with the Australian Information Security Manual (ISM)
- Zero‑trust architecture experience
- Background supporting ADF deployed environments and the unique constraints that come with them
The details:
- 12-month contract, on-site
- Canberra or Sydney based
- Standard business hours with occasional overtime by agreement
Senior Linux Technician Lead Expert – Canberra or Sydney employer: Expert360
Expert360 is an exceptional employer located in Sydney, offering a dynamic work environment that champions flexibility, empowerment, and continuous improvement. As a WHS Manager, you will play a pivotal role in shaping a proactive safety culture while enjoying opportunities for professional growth and collaboration with industry leaders. With a commitment to connecting elite professionals with meaningful work, Expert360 fosters a supportive atmosphere where your contributions can truly make a difference.
