RHEL Platform Engineer - Automation & Golden Images

ENGGSOL PTE. LTD.; Singapore; On-site; SGD 100,000 - 167,000; Full time

Job summary

ENGGSOL PTE. LTD. is seeking a Senior Linux/Platform Engineer to manage RHEL patching, OS hardening, and golden image maintenance.

You will implement Chef cookbook automation for provisioning, IPUG, and CIS-based hardening, and support enterprise Linux environments with CIS-aligned security practices. The role covers patching across SIT/UAT/DR/Production, annual golden-image maintenance, and ongoing system-wide upgrades, with a focus on reliability and audit readiness.

Qualifications

• Strong hands-on experience with Red Hat Enterprise Linux (RHEL) administration.
• Hands-on experience with Linux OS patching, upgrades and troubleshooting.
• Experience with RHEL in-place upgrades (IPUG).
• Strong understanding of Linux security hardening and CIS benchmarks.
• Experience building and maintaining enterprise Linux golden images.
• Experience developing Chef cookbook automation for server provisioning, OS hardening and operating system upgrades.
• Strong automation and scripting skills using Chef, Ansible, Shell/Bash and/or Python.

Responsibilities

• Plan and execute scheduled RHEL OS patching and hardening activities.
• Support patch cycles across SIT, UAT, DR and Production environments.
• Provide system administration support during daytime, nighttime and weekend maintenance windows.
• Perform pre-patching validation, patch deployment, troubleshooting and post-patching verification.
• Conduct post-cycle gap assessments and follow up on issues.
• Prepare post-patching management and technical reports.
• Ensure systems remain compliant with security standards and audit requirements.
• Build and configure standardized RHEL golden images.
• Maintain Chef cookbook automation for provisioning, IPUG and OS hardening.
• Review and update platform architecture documentation annually.
• Perform software patching and upgrades of platform/software.

Skills

RHEL administration

Linux patching

Automation with Chef

Ansible

Python/Shell scripting

Security hardening CIS

Education

Bachelor's Degree in Computer Science or related

Tools

Chef

Ansible

Shell/Bash

Python

Job description

ENGGSOL PTE. LTD. is seeking a Senior Linux/Platform Engineer to manage RHEL patching, OS hardening, and golden image maintenance.

You will implement Chef cookbook automation for provisioning, IPUG, and CIS-based hardening, and support enterprise Linux environments with CIS-aligned security practices. The role covers patching across SIT/UAT/DR/Production, annual golden-image maintenance, and ongoing system-wide upgrades, with a focus on reliability and audit readiness.