Senior Kubernetes Platform Engineer

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Senior Kubernetes Platform Engineer in Australia new

Firmus Technologies
Full time
Email

Australia
09/22/2026
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Sydney

Responsibilities

Operate and continuously improve a fleet-scale, multi-tenant Kubernetes platform across all Firmus sites.
Build operational tooling, guarded remediation, orchestration, and automation for estate-scale operations.
Execute cluster provisioning, patching, upgrades, decommissioning, version compliance, and staged or canary releases.
Operate and recover Kubernetes control planes, including etcd state, certificate rotation, failed upgrades, and corrupted resources.
Operate virtual clusters, tenant isolation patterns, GPU integration, device plugins, GPU scheduling, and driver coordination.
Diagnose scheduling, CNI, CSI, admission, resource contention, and other Kubernetes faults from first principles.
Run production Kubernetes baselines covering admission policy, workload identity, and network policy requirements.
Lead technical recovery during major Kubernetes incidents, drive permanent fixes, mentor engineers, and maintain runbooks and performance documentation.
Share the after-hours escalation roster for the Kubernetes estate.

Requirements

8+ years of overall experience with substantial ownership of production Kubernetes platforms in a 24/7 environment.
Deep experience with Kubernetes fleet operations, cluster lifecycle, upgrades, multi-cluster management, and control-plane internals.
Strong production experience writing Kubernetes controllers, operators, or admission logic.
Experience with multi-tenant or virtual cluster patterns and Kubernetes-layer tenant isolation.
Experience operating GPU-enabled Kubernetes, including device plugins, GPU scheduling, and driver coordination.
Strong infrastructure automation, infrastructure-as-code, and progressive rollout experience using tools such as OpenTofu or Terraform, Ansible, and Argo CD.
Strong scripting or programming skills for operational automation using Go, Python, or Bash.
Experience serving as a senior production escalation point, including major incident response, on-call participation, post-incident review, and runbook creation.
Understanding of Kubernetes security fundamentals, including admission control, workload identity, and network policy.
Clear technical judgment, communication, documentation, design-note, and escalation skills.
Preferred experience with GPU or HPC Kubernetes workloads, automated tenant or customer onboarding, vendor Kubernetes distributions, accelerated-computing reference architectures, DPU or SmartNIC networking, and open-source Kubernetes ecosystem contributions.
A preferred bachelor’s degree in computer science, engineering, or a related discipline, or an equivalent combination of relevant experience and training.

Benefits

Based in Australia or Singapore, with travel to Australian AI Factory sites as required.
The role participates in a shared after-hours escalation roster within a 24/7 operations function.

Firmus Technologies

Firmus Technologies delivers cutting‑edge digital solutions that empower businesses to innovate and scale efficiently. Our team blends industry expertise with agile development practices to craft customized software that meets each client’s unique needs. By fostering collaboration and continuous ...

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