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EXASOFT CONSULTING PTE. LTD.

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Red Hat OpenShift Platform Engineer (Kubernetes, AWS, RHEL, Cluster Administration)

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Summary

Platform engineer administering enterprise Red Hat OpenShift and Kubernetes clusters on AWS: provisioning, upgrades, node/workload management, monitoring, RBAC and certificate security, plus RHEL Linux administration and infrastructure automation. Involves on-call support and production incident response; based in Singapore.

Responsibilities

  • Administer and support enterprise OpenShift and Kubernetes platforms across production and non-production environments.
  • Manage cluster health, workloads, nodes, platform services, and lifecycle activities.
  • Perform cluster provisioning, configuration, upgrades, maintenance, and operational validation.
  • Support containerized workloads and troubleshoot platform-level issues involving networking, certificates, authentication, and cluster components.
  • Maintain reliable OpenShift environments running on AWS infrastructure and troubleshoot dependencies between cloud and container platforms.
  • Perform Linux system administration activities supporting container platform operations.
  • Automate routine infrastructure and platform administration tasks using configuration-management and scripting tools.
  • Monitor platform availability, resource utilization, alerts, and operational health.
  • Support security and compliance activities including access controls, RBAC, certificates, vulnerability remediation, and configuration standards.
  • Participate in incident response, root-cause analysis, release validation, and production support.
  • Collaborate with infrastructure, application, and engineering teams to resolve complex platform issues and improve operational reliability.

Requirements

  • 4+ years of experience in Linux infrastructure, platform engineering, cloud operations, or containerized environments.
  • Strong hands-on experience with Red Hat OpenShift administration in enterprise or production environments.
  • Hands-on experience managing and troubleshooting Kubernetes environments, including clusters, workloads, services, and networking.
  • Practical experience supporting AWS cloud infrastructure, including IAM, STS, and cloud access mechanisms.
  • Experience in RHEL/Linux administration and troubleshooting in enterprise environments.
  • Experience managing OpenShift/Kubernetes cluster upgrades, maintenance, provisioning, and lifecycle operations.
  • Experience troubleshooting production issues involving nodes, workloads, networking, certificates, resource utilization, and platform services.
  • Experience with container technologies, RBAC, platform security, and configuration management.
  • Experience with monitoring, alerting, incident handling, and root-cause analysis in production environments.
  • Experience with CI/CD, GitOps, or infrastructure automation practices.
  • Ability to participate in on-call support and handle critical production incidents.
  • Red Hat certifications are preferred.

Skills

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