Unix/Linux System Administrator

CHARTERHOUSE PTE. LTD.; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading IT infrastructure company is seeking a Unix/Linux System Administrator to manage and enhance Unix/Linux systems across various environments. This role requires 3–5 years of experience in system administration, scripting proficiency, and a proactive mindset to support critical operations. The position offers professional growth opportunities and a competitive salary package.

Benefits

Exposure to enterprise-scale infrastructure

Supportive team environment

Competitive salary and benefits package

Qualifications

• 3–5 years of experience in Unix/Linux system administration.
• Hands-on experience with OS patching, security hardening.
• Willingness to provide on-call support.

Responsibilities

• Perform daily system administration of Sun Solaris and Linux-based servers.
• Provide second-level support to resolve incidents and service requests.
• Assist with planning and implementing system changes.

Skills

Unix/Linux system administration

Scripting (Shell, Python, or Perl)

Problem-solving skills

Communication Skills

Education

Bachelor’s degree in Information Technology or related field

Tools

OS patching tools

Enterprise backup tools

SAN storage

Job description

We are looking for a Unix/Linux System Administrator to join our IT Infrastructure team. In this role, you will be responsible for maintaining, supporting, and enhancing our Unix/Linux systems across production, test, and disaster recovery environments. This position is ideal for someone with solid technical skills who enjoys hands-on system administration and is eager to grow their expertise in infrastructure and cloud technologies.

Key Responsibilities

System Administration & Operations

• Perform daily system administration of Sun Solaris and Linux-based servers.
• Apply system upgrades, patches, and security hardening to maintain stability and compliance.
• Manage system passwords, certificates, backups, and monitoring tasks.
• Assist in disaster recovery planning and participate in DR drills.
• Maintain and support UAT environments for testing and project activities.
• Document system configurations, processes, and procedures.

Incident & Problem Management

• Provide second-level support to resolve incidents and service requests.
• Troubleshoot issues, perform root cause analysis, and assist in implementing preventive measures.

Change & Release Management

• Assist with planning and implementing system changes according to change management procedures.
• Support application deployments and environment readiness.

Configuration & Performance Management

• Maintain accurate system configuration records.
• Monitor system performance and support optimization activities.

Project Support & Process Improvement

• Support infrastructure-related project tasks according to timelines.
• Contribute to improving IT service processes in line with security and compliance standards.

Requirements

• Bachelor’s degree in Information Technology, Computer Science, or related field (or equivalent experience).
• 3–5 years of experience in Unix/Linux system administration.
• Hands-on experience with OS patching, security hardening, and enterprise backup tools.
• Familiarity with SAN storage, system monitoring, and performance tuning.
• Proficiency in scripting (Shell, Python, or Perl) for automation.
• Knowledge of database administration and data center operations is an advantage.
• Willingness to provide on-call support on a rostered basis and after-hours support for critical changes.
• Good communication and teamwork skills, with a proactive and problem-solving mindset.
• Relevant certifications in Unix/Linux system administration are preferred; cloud certifications are a plus.

What We Offer

• Exposure to enterprise-scale infrastructure and mission-critical systems.
• Supportive team environment with room for professional growth.
• Competitive salary and benefits package.

EA License no: 16S8066 | Registration No: R1110125