Senior Platform Engineer – Kubernetes

Company and product

Role focus

Cluster engineering and operations

• Build, bootstrap, configure, and manage self-managed clusters, including control planes, worker nodes, networking, and core platform services.
• Troubleshoot and maintain the Kubernetes API server, scheduler, controller manager, and other critical control-plane components.
• Tune etcd; handle backup, restore, disaster recovery, performance troubleshooting, cluster health, and quorum issues.
• Implement observability for cluster health, control-plane metrics, etcd, nodes, resource utilization, logs, and alerts.
• Use FluxCD GitOps for cluster configuration, platform components, and infrastructure changes.
• Use Ansible to provision, configure, upgrade, and maintain clusters and underlying infrastructure.
• Use Helm to manage platform components and infrastructure services; write Bash and/or Python automation utilities.
• Manage upgrades, configuration changes, certificate rotation, node lifecycle, and platform maintenance with minimal disruption.
• Diagnose complex cluster failures, perform root-cause analysis, and implement reliability improvements.
• Write technical documentation, operational runbooks, recovery procedures, and platform standards.

Required technical experience

• Hands-on experience building and managing self-managed Kubernetes clusters, including control-plane setup and administration.
• In-depth Kubernetes architecture, internals, control-plane, and cluster lifecycle knowledge; experience diagnosing issues across components, nodes, networking, and core services.
• Practical etcd tuning, backup and recovery, performance optimization, and troubleshooting experience.
• Experience with cluster-level observability, including metrics, logs, alerts, and health monitoring.
• Hands-on FluxCD and GitOps infrastructure configuration experience, and strong Helm experience managing platform components.
• Ansible experience for infrastructure configuration, provisioning, and operations automation.
• Proficiency in Bash and/or Python scripting, plus strong Linux administration and troubleshooting skills.

Preferred qualifications

• Experience with bare-metal, on-premises, private-cloud, or hybrid Kubernetes environments is preferred.
• Kubeadm or equivalent cluster bootstrap experience is preferred.
• Familiarity with Kubernetes networking, CNI plugins, DNS, certificates, RBAC, and cluster security is preferred.
• Prometheus, Grafana, Alertmanager, highly available control planes, disaster recovery exercises, air-gapped environments, or automated platform upgrades are preferred.