This is a hands‑on Site Reliability Engineer position focused on improving reliability, raising automation maturity, and shaping the Linux, monitoring, authentication and container platforms at AC3’s Hybrid Cloud practice.
Hybrid 50/50 home/office.
Responsibilities
Own and improve Linux based services, automation tooling, monitoring infrastructure, authentication integrations and container platforms.
Build smarter automation using tools such as GitHub Actions, Ansible, Puppet, Jenkins and related orchestration technologies.
Help unify observability across the platform, with monitoring that is scalable, resilient, service‑aware and aligned to SLIs and business outcomes.
Support and evolve Docker, Kubernetes and Rancher‑based platforms, while contributing to AC3’s codebase and engineering IP through GitHub.
Manage the Linux platform lifecycle end to end: provisioning, configuration, validation, patching, break/fix, capacity and continual improvement.
Work closely with other platform teams, field escalations and join a shared on‑call roster with strong team support.
Success Metrics
Maintain exceptional availability standards for the platform.
Reduce avoidable incidents by engineering out risk and repeat issues.
Increase automation coverage, improve documentation and leave the platform in better shape than found.
Work well across teams and build credibility through thoughtful communication, follow‑through and sound judgement.
Essential Qualifications
Australian citizen, eligibility for Commonwealth Security Clearance.
Strong Linux systems administration capability, ideally with a command line and automation focus.
Practical scripting ability in Python, Bash or similar.
Experience with automation, orchestration and/or CI/CD tooling.
Exposure to monitoring or observability platforms and a genuine interest in reliability engineering.
A broad understanding of infrastructure across cloud, virtualisation, networking and platform environments.
Nice to Have
Experience with OIDC or SAML integrations.
Exposure to Docker, Kubernetes, Rancher, Terraform or OpenTofu.
Experience with Red Hat Satellite, Oracle Spacewalk, database platforms or MSP environments.
Vendor, cloud or ITIL certifications.
Platforms Engineer – Site Reliability • Sydney, NSW, AU
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