UNIX / Linux L3 Engineer

Tap Growth ai; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Tap Growth ai in Singapore is seeking a skilled UNIX/Linux L3 Engineer to join our on-site team. You will build, configure, and harden UNIX/Linux servers, develop automation scripts, and collaborate with security, network, and application teams to ensure reliable platform delivery.

Candidate should excel in advanced troubleshooting and provide L3 support across development, test, and production environments. Experience with IAAC and cloud tools is advantageous.

Qualifications

• Experience managing UNIX/Linux servers, securing and hardening systems.
• Proficient in shell scripting and Python for automation.
• Strong experience with high availability, clustering, and SAN/NAS storage.
• Ability to troubleshoot complex server issues and provide L3 support.
• Experience with infrastructure-as-code concepts is a plus.

Responsibilities

• Install, configure, and harden UNIX/Linux servers and environments.
• Provide L3 infrastructure support and resolve complex issues.
• Develop scripts for provisioning and automation; apply IaC practices.
• Ensure security hardening, patching, and compliance.
• Create and maintain technical runbooks, SOPs, and design docs.
• Coordinate with cross-functional teams for deployments and releases.

Skills

Linux Administration

Unix/Linux server build

Shell Scripting

Python automation

High Availability & Clustering

Storage SAN/NAS & LVM

Troubleshooting & L3 support

Tools

AWS

Azure

VMware

Veritas Cluster / VCS

IBM MQ

Job description

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.