Unix/Linux System Administrator

6 days ago

Singapore CHARTERHOUSE PTE. LTD. Full time
Roles & Responsibilities

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.
Tell employers what skills you have

Process Improvement
Release Management
Shell Scripting
SAN
Root Cause Analysis
Scripting
Unix
Administration
Problem Management
Python
System Administration
Performance Tuning
Teamwork Skills
Disaster Recovery
Solaris
Performance Management
Linux

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