Kubernetes Administrator

Mandatory Skills

• Minimum 8+ years of IT infrastructure/platform administration experience.
• Minimum 6+ years of hands-on experience with Kubernetes administration.
• Hands-on experience with OpenShift and/or Rancher.
• Strong Linux administration (RHEL/CentOS/Ubuntu/Windows).
• Experience deploying and managing production-grade Kubernetes clusters.
• Containerization using Docker or OCI-compliant runtimes.
• Kubernetes cluster installation, upgrades, scaling, and lifecycle management.
• High Availability (HA) cluster architecture and disaster recovery.
• Networking concepts including Ingress, Services, CNI, Load Balancers, Network Policies, DNS, and Service Mesh.
• Storage management using CSI, Persistent Volumes (PV), Persistent Volume Claims (PVC), Storage Classes, and dynamic provisioning.
• RBAC, Identity Management, Secrets Management, TLS/SSL, and Kubernetes security hardening.
• Monitoring using Prometheus, Grafana, Alertmanager, and logging with EFK/ELK or OpenSearch.
• Automation using Ansible, Helm, Kustomize, Terraform, or GitOps tools.
• Strong troubleshooting skills for production environments.

Responsibilities

• Design, deploy, administer, and maintain Kubernetes clusters.
• Install and manage OpenShift and/or Rancher platforms.
• Perform Kubernetes version upgrades and cluster lifecycle management.
• Configure namespaces, RBAC, quotas, policies, and multi-tenancy.
• Deploy and manage applications using Helm Charts and Operators.
• Configure networking, ingress controllers, service mesh, and load balancing.
• Implement backup and disaster recovery strategies for Kubernetes clusters.
• Monitor cluster health, capacity, and performance.
• Troubleshoot cluster, networking, storage, and application deployment issues.
• Implement Kubernetes security best practices and compliance standards.
• Automate cluster provisioning and operational tasks.
• Work with DevOps, Security, Infrastructure, and Application teams for platform integration.
• Perform Root Cause Analysis (RCA) for production incidents.
• Create architecture documents, SOPs, operational runbooks, and technical documentation.
• Mentor L1/L2 engineers and provide technical guidance.
• Participate in 24x7 production support and on-call rotation.

Preferred Skills

• Red Hat OpenShift Container Platform (OCP)
• Rancher Kubernetes Engine (RKE/RKE2)
• Istio or Linkerd Service Mesh
• Argo CD or FluxCD (GitOps)
• Jenkins, GitLab CI/CD, Azure DevOps
• Harbor or other container registries
• HashiCorp Vault or External Secrets Operator
• Cloud Kubernetes platforms:
• Infrastructure as Code using Terraform.
• Experience with virtualization platforms such as VMware, KVM, or OpenStack.

Educational Qualification

• Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.

Preferred Certifications

• Certified Kubernetes Administrator (CKA)
• Certified Kubernetes Security Specialist (CKS)
• Certified Kubernetes Application Developer (CKAD)
• Red Hat Certified Specialist in OpenShift Administration
• Red Hat Certified Engineer (RHCE)
• Rancher Certified Engineer (preferred)
• AWS Certified Solutions Architect Associate/Professional
• Microsoft Azure Administrator/Architect
• Red Hat OpenShift Administration Certification

Key Competencies

• Strong analytical and troubleshooting skills.
• Deep understanding of container orchestration and cloud-native technologies.
• Excellent communication and customer-facing skills.
• Technical leadership and mentoring capabilities.
• Ability to manage critical production incidents under SLA.
• Strong documentation and presentation skills.
• Knowledge of ITIL processes and change management.
• Ownership, accountability, and proactive problem-solving approach.

Work location : Greater Noida