Senior Engineer – Red Hat OpenShift & Linux Platform (L3 Specialist)

Hello,

Role Title: Senior Engineer – Red Hat OpenShift & Linux Platform (L3 Specialist)/Openshift Engineer

Experience: 7 - 12 Years

Location: Singapore

Contract Duration: 12 months, extendable (based on project requirement & performance) 

Work Mode: Work From Office (WFO)

Please review the job details below and confirm if everything aligns with your expectations.

We are seeking a Senior Engineer (L3 Escalation Specialist) with deep expertise in Red Hat OpenShift container platforms and Linux infrastructure to join our team in Singapore. In this role, you will serve as the highest technical escalation point for complex platform and OS-level issues across enterprise hybrid cloud environments.

Key Responsibilities

1. Red Hat OpenShift Platform Support

• Serve as L3 escalation support for Red Hat OpenShift Container Platform (OCP) across on-premise and hybrid cloud environments.
• Administer, troubleshoot, and maintain OpenShift clusters, control plane, worker nodes, etcd, and ingress/egress components.
• Manage OpenShift upgrades, patching, and version lifecycle planning.
• Diagnose and resolve issues related to pods, deployments, namespaces, persistent volumes, operators, and Service Mesh (Istio).
• Implement and maintain Role-Based Access Control (RBAC), network policies, and security contexts.
• Support integrations with enterprise tools (Active Directory, SSO, Splunk, BigFix, Ansible).
• Enforce hardening standards on OpenShift and container images in line with CIS benchmarks.

2. Linux Platform Support

• Provide L3 support for Red Hat Enterprise Linux (RHEL 7/8/9) and other Linux distributions.
• Perform Root Cause Analysis (RCA) for OS-level incidents including kernel panics, performance degradation, storage faults, and network issues.
• Manage system hardening, patching, and compliance activities in line with security baselines.
• Administer system services, daemons, cron jobs, startup processes (systemd), PAM, sudoers, and access controls.
• Support enterprise storage management (LVM, NFS, iSCSI, multipathing) and networking (firewalld, SELinux, routing, DNS).
• Write and maintain automation scripts using Bash, Python, or Ansible.

Desired Candidate Profile

• Total Experience: 7+ years of experience in Linux System Administration or Platform Engineering.
• OpenShift Expertise: 3+ years of hands-on experience with Red Hat OpenShift Container Platform (OCP 4.x).
• OS Mastery: Strong proficiency in RHEL 7/8/9 administration and deep-level troubleshooting.
• Architecture Knowledge: Solid understanding of KubeVirt architecture, KVM, and VMware virtualization frameworks.
• Storage & Network: Knowledge of enterprise storage setups and network routing/security standards.
• Automation: Practical experience in automation scripting using Ansible, Bash, or Python.

If this role isn't the right fit for you at the moment, but you know friends or colleagues who might be interested, please feel free to pass this opportunity along!

Important Note:

> Please share your resume in word format with [Confidential Information]

> Important Note: If this requirement is not a match for you, please refer to your friends.

> Interested professionals can reach out to me for Confidential Discussion @ +65- 6950 5535