Senior Red Hat OpenShift & RHEL Engineer (L3)

Role Level: Senior / L3 Escalation

Role Overview

We are seeking a Senior OpenShift & Linux Platform Engineer (L3) to manage, secure, and maintain enterprise Red Hat OpenShift Container Platform (OCP) and Red Hat Enterprise Linux (RHEL) infrastructure. Serving as the highest escalation point, you will perform Root Cause Analysis (RCA) on complex OS and platform incidents, drive platform upgrades, and enforce system security standards across hybrid environments.

Key Responsibilities

• L3 OpenShift Support: Troubleshoot and maintain OpenShift 4.x clusters (control plane, worker nodes, etcd, ingress, service mesh, and KubeVirt); drive platform lifecycle planning, upgrades, and patching.
• Linux Platform Administration: Provide top-tier L3 support for RHEL 7/8/9 across physical, virtual, and cloud infrastructure; perform root cause analysis (RCA) for kernel, storage (LVM/NFS), and networking/SELinux incidents.
• Security & Compliance: Enforce RBAC, system hardening, and image vulnerability remediations in alignment with CIS benchmarks and enterprise policies.
• Integrations & Automation: Maintain automation scripts and playbooks using Ansible, Python, or Bash while integrating platforms with enterprise tools (Splunk, BigFix, Active Directory/SSO).

Requirements & Key Qualifications

• Experience: 7+ years in Linux System Administration/Platform Engineering with 3+ years dedicated to Red Hat OpenShift (OCP 4.x).
• OS Expertise: Advanced proficiency in RHEL 7/8/9, systemd, storage drivers, firewalld, and SELinux.
• Architecture Knowledge: Solid understanding of KubeVirt, container networking, persistent storage, and virtualization platforms (VMware, KVM).
• Automation & Scripting: Strong hands-on experience with Ansible, Bash, or Python.

Important Note:

Please share your resume in Word format with [Confidential Information]

If this requirement is not a match for you, please feel free to refer your friends.

Interested professionals can reach out to me for a confidential discussion at +65 68177759.

Best Regards,

Arti C

Sr. Talent Acquisition

Helius Technologies Pte Ltd

36 Robinson Road, #13-05, City House, Singapore 068877

• Mobile / WhatsApp: +65 68177759
• DID: +65 6429-9407
• Email: [HIDDEN TEXT]