UNIX / Linux L3 Engineer

We're Hiring: UNIX / Linux L3 Engineer!

We are looking for a skilled and motivated UNIX / Linux L3 Engineer to join our dynamic team in Singapore. The ideal candidate will have a strong background in managing complex UNIX and Linux systems, troubleshooting advanced issues, and ensuring optimal system performance. If you are passionate about technology and enjoy working in a fast-paced environment, we want to hear from you!

Location:

Singapore, Singapore

Work Mode:

Work from Office

Role:

UNIX / Linux L3 Engineer

What You'll Do:

Key Responsibilities

Infrastructure Build & Implementation

Install, configure, and harden

UNIX/Linux servers .

Build and configure

Development, Test, UAT, and Production

environments.

Configure server

storage, networking, security, and system services .

Project & L3 Support

Provide

L3 infrastructure support

and resolve complex server issues.

Collaborate with application, database, network, cloud, and security teams.

Support infrastructure planning, design reviews, deployments, and cutover activities.

Ensure infrastructure readiness for application onboarding and releases.

Automation

Develop

Shell and Python scripts

for server provisioning and operational automation.

Implement configuration management and

Infrastructure-as-Code (IaC)

practices.

Standardise server builds and deployment procedures.

Security & Compliance

Implement

OS hardening and security best practices .

Perform patching and vulnerability remediation.

Ensure compliance with organisational and regulatory security standards.

Documentation

Create and maintain

Technical Design Documents (TDDs), SOPs, build documents, runbooks, and knowledge articles .

Provide knowledge transfer to operations and support teams.

Must-Have Skills

Strong

Linux Administration , particularly

RHEL / Oracle Linux .

Strong experience in

UNIX/Linux server build, configuration, and security hardening .

Strong

Shell Scripting

and

Python automation

skills.

Experience with

High Availability and Clustering , preferably

Veritas Cluster / VCS FSS .

Experience with

Storage: SAN/NAS and LVM .

Strong troubleshooting and L3 support experience.

Good to Have

Experience with

AWS, Azure, and VMware .

Infrastructure-as-Code and configuration management experience.

IBM MQ

experience.

Disaster Recovery and capacity/performance management experience.

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