Unix System Administrator

DAULFIN GREY HR PTE. LTD.; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A leading HR solutions provider in Singapore seeks an experienced Unix/Linux Administrator to manage and support Unix and Linux systems in various environments. The role requires over 8 years of Unix/Linux experience, including OS hardening and performance tuning. Successful candidates will handle system monitoring, disaster recovery, and incident support, ensuring systems are compliant and highly available. The position involves 24/7 operations and after-hours changes as required.

Qualifications

• 8+ years of experience in Unix/Linux administration.
• Strong experience with Solaris and Linux production systems.
• Hands-on experience in OS hardening and enterprise backups.

Responsibilities

• Administer and support Unix and Linux systems across production environments.
• Perform system upgrades, patching, and performance tuning.
• Monitor system health, capacity, backups, and security compliance.

Skills

Unix/Linux administration

Scripting

Monitoring system health

Disaster recovery planning

Performance tuning

Education

Bachelor’s degree in IT or related field

Tools

Solaris

Linux

SAN

Job description

Responsibilities

• Administer and support Unix and Linux systems across production and DR environments.
• Perform system upgrades, patching, hardening, and performance tuning.
• Monitor system health, capacity, backups, and security compliance.
• Execute disaster recovery planning, testing, and failover activities.
• Provide L2/L3 incident support and manage problem resolution.
• Support projects, changes, and maintain system documentation.

Requirements

• Bachelor’s degree in IT or related field, with 8+ years of Unix/Linux administration experience.
• Strong experience with Solaris and Linux production systems.
• Hands‑on experience in OS hardening, patching, and enterprise backups.
• Proficient in Unix/Linux scripting for automation.
• Familiarity with SAN, data centre, or cloud environments is an advantage.
• Able to support 24/7 rostered operations and after‑hours changes.