Senior Kubernetes Platform Engineer

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Senior Kubernetes Platform Engineer in Others new

Firmus Technologies
Full time
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Others
10/16/2026
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Singapore, Singapore

Responsibilities

Operate and continuously improve Firmus’s multi-tenant Kubernetes platform across every site in the estate.
Build operational tooling, guarded remediation, orchestration, controllers, and automation for fleet-scale operations.
Execute cluster provisioning, patching, upgrades, lifecycle management, decommissioning, and version compliance across the fleet.
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.
Run tenant onboarding and release pipelines and diagnose scheduling, CNI, CSI, admission, and resource contention failures.
Operate production Kubernetes baselines covering admission policy, workload identity, and network policy requirements.
Lead technical recovery during major incidents, drive permanent fixes, document runbooks, and mentor engineers.
Participate in 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 operating Kubernetes at fleet scale, including cluster lifecycle, upgrades, and multi-cluster management.
Strong knowledge of Kubernetes control-plane internals, including etcd, the API server, controllers, schedulers, and certificate and credential rotation.
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 GitOps experience using tools such as OpenTofu or Terraform, Ansible, and Argo CD.
Strong scripting or programming experience for operational automation using Go, Python, Bash, or equivalent technologies.
Experience with major incident response, on-call participation, post-incident reviews, senior production escalation, and executable runbooks.
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 at scale, automated tenant or customer onboarding, vendor Kubernetes distributions, accelerated-computing reference architectures, DPU or SmartNIC networking, and open-source Kubernetes ecosystem projects.
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.
Participates in a 24/7 after-hours escalation roster with other senior engineers.

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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