Containers / Kubernetes (K8S) L3 Engineer

Role purpose
Provide L3 operational ownership for enterprise container platforms and workloads, including Kubernetes platform lifecycle, CI/CD enablement, monitoring, logging, security, storage and production reliability across on-premises and cloud-integrated environments.
Key responsibilities
• Operate Kubernetes clusters and supporting components across sandbox, development, integration, QA and production environments.
• Administer cluster upgrades, node lifecycle, namespaces, RBAC, network policies, ingress, service load balancing, certificates, secrets and configuration objects.
• Troubleshoot pods, scheduling, DNS, networking, storage, image-pull, performance, availability and application-deployment failures.
• Operate and support container runtime, Helm/GitOps deployment patterns, image promotion, artifact registry and CI/CD pipeline integration.
• Maintain observability using Prometheus and enterprise logging stacks; define alerts, dashboards, SLO indicators and actionable runbooks.




• Support platform storage and networking technologies such as Rook-Ceph/NFS, Calico/Cilium, NGINX Ingress and MetalLB or equivalent.
• Implement hardening, image scanning, patching, backup/recovery, compliance-as-code and secure credential integration with enterprise PAM.
• Contribute to platform automation frameworks and migration from legacy Kubernetes/Docker stacks to supported Kubernetes/containerd architectures.
• Own complex L3 incidents, problem investigations, root-cause analysis and permanent corrective actions for the assigned service.
• Perform proactive health checks, capacity and performance reviews, trend analysis, vulnerability remediation and service improvement.
• Plan and execute approved changes, releases, upgrades and minor enhancements using formal ITSM, change control and rollback procedures.
• Maintain architecture-aligned configurations, SOPs, runbooks, knowledge articles, configuration records and audit evidence

📌 Containers / KubernetesS)Engineer (India)
🏢 CosMicIT
📍 India