Red Hat OCP Platform Administrator (RHEL, Kubernetes, Ansible, Argo CD, UAT, Postman, Nexus Repository, Grafana, Prometheus)

Responsibilities • Administer and support enterprise Red Hat OpenShift Container Platform (OCP) environments, including cluster configuration, node management, platform maintenance, upgrades, patching, and troubleshooting. • Manage OpenShift workloads, namespaces, resources, access controls, persistent storage, and overall cluster health across development and production environments. • Perform Red Hat Enterprise Linux (RHEL) administration, including server provisioning, OS configuration, upgrades, patching, hardening, and troubleshooting. • Work with Kubernetes and container platforms to support application deployments, platform operations, and infrastructure-level issue resolution. • Implement and maintain OpenShift GitOps / ArgoCD workflows for controlled and automated application deployments across environments. • Develop and maintain Ansible automation for infrastructure configuration, platform operations, compliance activities, and repetitive administrative tasks. • Manage and support Jenkins CI/CD pipelines, ensuring reliable build, test, and deployment workflows. • Configure and maintain RBAC/IAM controls and integrate platform access with enterprise identity mechanisms. • Support OpenShift networking, firewall configurations, node connectivity, resource allocation, and platform troubleshooting. • Administer Red Hat Satellite for system lifecycle management, patching, subscriptions, and RHEL environment maintenance. • Monitor platform health, logs, metrics, and alerts using Grafana, Loki, Prometheus, and Alertmanager, and investigate infrastructure or application-related issues. • Support OpenShift Virtualization environments, including virtual machine provisioning and operational administration. • Manage enterprise artifact repositories such as Nexus Repository and support their integration with deployment pipelines. • Participate in platform testing, including UAT, API testing, and performance testing, where required. • Work with tools such as Postman, K6, Dynatrace, and Tanzu to support testing, monitoring, performance validation, and platform operations. • Maintain operational documentation, troubleshooting procedures, configuration records, and platform support processes. • Follow security, compliance, patching, and hardening standards across OpenShift and Linux environments. Requirements • 4+ years of hands-on experience in Red Hat OpenShift / OCP administration. • Strong experience with Red Hat Enterprise Linux (RHEL) administration and Linux infrastructure. • Hands-on experience with Kubernetes and container platform administration. • Hands-on experience with OpenShift cluster setup, configuration, upgrades, node management, troubleshooting, and day-to-day platform operations. • Experience with OpenShift GitOps / ArgoCD and GitOps-based deployment practices. • Hands-on experience with Ansible automation, including playbook development and configuration management. • Experience managing CI/CD pipelines, preferably using Jenkins or similar tools. • Experience in RBAC/IAM, identity integration, networking, firewall configuration, and platform security. • Experience with Red Hat Satellite for patching and lifecycle management is preferred. • Experience with monitoring and observability tools such as Prometheus, Alertmanager, Grafana, and Loki. • Experience in OpenShift Virtualization, Nexus Repository, Dynatrace, Tanzu and Postman. • Experience in Performance testing framework. • Strong troubleshooting skills across Linux, Kubernetes/OpenShift, networking, deployments, and infrastructure components. • Red Hat OpenShift certification is preferred.