Platform administrator role maintaining Red Hat OpenShift/Kubernetes clusters for enterprise applications — handling provisioning, upgrades, worker nodes, namespaces, and PV/PVC storage, plus RHEL OS patching. Automates with Ansible, Bash, and Terraform, supports CI/CD via Jenkins and Azure DevOps, and monitors with Elasticsearch/Kibana. On-site in Singapore.
Responsibilities
Administer and maintain Red Hat OpenShift Container Platform (OCP) and Kubernetes environments supporting enterprise applications.
Manage OpenShift cluster provisioning, upgrades, worker nodes, namespaces, and persistent storage resources.
Support containerized application deployments by configuring workloads, services, routes, and application settings.
Monitor cluster health and troubleshoot issues affecting pods, nodes, networking, storage, and platform services.
Perform Linux and Red Hat Enterprise Linux (RHEL) administration, including operating system patching, maintenance, and security updates.
Develop and maintain automation scripts and configuration workflows using Ansible, Bash scripting, and Terraform.
Support CI/CD pipeline development and deployment automation using Jenkins and Azure DevOps.
Monitor infrastructure and application performance using tools such as Elasticsearch and Kibana.
Support production deployments, platform upgrades, and infrastructure changes while minimizing service disruption.
Collaborate with application, infrastructure, and security teams to support application onboarding, platform enhancements, and operational requirements.
Requirements
Bachelor's degree in Computer Science, Information Technology, Engineering, or a related discipline.
7+ years of experience in administering Red Hat OpenShift Container Platform (OCP) and Kubernetes environments.
Experience in cluster provisioning, upgrades, worker node management, namespace creation, and Persistent Volume (PV/PVC) provisioning.
Experience in Linux and Red Hat Enterprise Linux (RHEL) administration, including OS patching, maintenance, and security updates.
Experience supporting containerized application deployments, including workloads, services, routes, and application configuration.
Practical experience troubleshooting OpenShift/Kubernetes issues involving pods, nodes, networking, storage, and cluster services.
Experience developing and maintaining CI/CD pipelines using Jenkins and Azure DevOps.
Hands-on experience with infrastructure automation using Ansible, Bash scripting, and Terraform.
Experience in Infrastructure as Code (IaC), containerization, and platform engineering concepts.
Experience with infrastructure and application monitoring using Elasticsearch, Kibana, or similar tools.
Hands-on experience in high availability, infrastructure resilience, performance monitoring, and production support.
Hands-on experience in DevSecOps practices, vulnerability scanning, and enterprise security standards.
Ability to collaborate with cross-functional teams and support deployments, incident resolution, and platform lifecycle activities.