Senior Linux Engineer - On-Prem Kubernetes & Bare-Metal

Cox Purtell; Sydney; On-site; AUD 140,000 - 190,000; Full time

Job summary

Cox Purtell in Sydney, Australia, is seeking a Linux Systems Engineer to join its Global Linux team. You will design, build and operate on-prem, bare-metal Linux platforms and Kubernetes clusters powering a live trading environment.

You will own provisioning, orchestration and automation, with a focus on reliability and performance in a high-demand setting. This role requires strong production Linux experience, hands-on Kubernetes, and incident-driven improvements.

Qualifications

• Strong Linux systems engineering experience in a production environment.

Responsibilities

• Design, deploy and operate on-prem Kubernetes clusters in a bare-metal environment.
• Maintain and improve bare-metal Linux infrastructure, including provisioning, lifecycle management and performance tuning.
• Own and operate core Kubernetes components such as the CNI, GitOps tooling and cluster management layer (currently Cilium, ArgoCD and Rancher).
• Build and maintain CI/CD workflows and infrastructure as code for infrastructure and cluster deployments.
• Take part in an on-call rotation, drive post-incident improvements, and document runbooks so the wider team can support the platforms.

Skills

Linux

Kubernetes

GitOps

Terraform

CI/CD

Networking

Performance tuning

On-call support

Tools

Cilium

ArgoCD

Rancher

GitHub Actions

Terraform

Job description

Cox Purtell in Sydney, Australia, is seeking a Linux Systems Engineer to join its Global Linux team. You will design, build and operate on-prem, bare-metal Linux platforms and Kubernetes clusters powering a live trading environment.

You will own provisioning, orchestration and automation, with a focus on reliability and performance in a high-demand setting. This role requires strong production Linux experience, hands-on Kubernetes, and incident-driven improvements.