Senior RHEL & OpenShift Platform Engineer

U3 INFOTECH PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

U3 INFOTECH PTE. LTD. in Singapore is seeking an experienced Linux and OpenShift Administrator to manage RHEL environments and OCP clusters in production.

You will handle deployment, configuration, hardening, and Day-2 operations to ensure high availability and security. The role emphasizes integration of container platforms with messaging, API gateways, and registry workflows. The ideal candidate has hands-on RHEL 8/9 expertise, OpenShift 4.x operational skills, and knowledge of RBAC, SCC, and

Qualifications

• Hands-on experience administering RHEL 8/9 in enterprise environments.
• Experience deploying and administering OpenShift 4.x clusters.
• Familiarity with RBAC, SCC, network policies and container tooling.
• Knowledge of image-based deployments and registry management is a plus.

Responsibilities

• Deploy, configure, and administer RHEL and OCP environments in production.
• Perform Day-2 operations, upgrades, and security hardening.
• Manage networking, storage, and RBAC within OCP clusters.
• Oversee container image lifecycle and registry operations (Quay).

Skills

RHEL System Administration

OpenShift Administration

Container & Integration Platforms

Tools

Red Hat Satellite

dnf/yum

SELinux

Kubernetes/OCP 4.x

Quay registry

Job description

U3 INFOTECH PTE. LTD. in Singapore is seeking an experienced Linux and OpenShift Administrator to manage RHEL environments and OCP clusters in production.

You will handle deployment, configuration, hardening, and Day-2 operations to ensure high availability and security. The role emphasizes integration of container platforms with messaging, API gateways, and registry workflows. The ideal candidate has hands-on RHEL 8/9 expertise, OpenShift 4.x operational skills, and knowledge of RBAC, SCC, and