System Engineer (Unix/Linux)

ES RECRUITMENT PTE. LTD.; Singapore; On-site; SGD 60,000 - 70,000; Full time

Job summary

ES RECRUITMENT PTE. LTD. is seeking a System Engineer to support Unix/Linux environments at Changi Airport. You will maintain critical systems, troubleshoot issues, and participate in upgrades and project implementations.

The role requires hands-on Unix/Linux experience, strong troubleshooting skills, and the ability to collaborate with internal teams and vendors. A 1-year renewable assignment with standard office hours and on-site work is offered.

Qualifications

• Diploma or equivalent in CS/IT or related discipline.
• 2–3 years of relevant system/support experience.
• Hands-on Unix/Linux system support and troubleshooting.

Responsibilities

• Perform routine system maintenance and scheduled activities.
• Support Unix/Linux OS and applications including monitoring.
• Upgrade, patch, and maintain OS and apps.
• Handle service and change requests; resolve incidents.
• Troubleshoot system, app, and technical issues with vendors.
• Investigate root causes and preventive actions.
• Prepare incident and technical reports for stakeholders.
• Assist with ISO audit activities and system docs.
• Participate in project installations, testing and commissioning.
• Provide 24×7 standby support when required.

Skills

Diploma in CS/IT

Unix/Linux

2–3 years exp

English communication

Education

Diploma or equivalent

Tools

VM environments

Windows Server

ITIL knowledge

Job description

System Engineer (Unix/Linux) – Changi Airport

Location: Changi Airport
Working Hours: Monday to Friday, Office Hours + 24×7 Support Standby
Salary: Up to S$5,000 Basic + 0.5 Month Completion Bonus + Up to 0.5 Month Performance Bonus
Employment Type: 1 Year Project Renewable Assignment

The Opportunity

We are looking for a System Engineer to support the implementation, maintenance and operational stability of critical systems at Changi Airport.

This role is ideal for candidates with hands‑on Unix/Linux system support experience who enjoy troubleshooting technical issues, supporting system upgrades and working on project implementations.

You will work closely with internal teams, stakeholders and external vendors to ensure systems remain stable, secure and operational.

What You Will Do

• Perform routine system maintenance and ensure scheduled activities are completed on time.


• Support Unix/Linux operating systems and applications, including system monitoring and troubleshooting.


• Perform OS and application upgrades, patching and maintenance.


• Attend to system/application service requests and change requests.


• Troubleshoot and resolve system, application and technical incidents.


• Work with external vendors/support teams to resolve complex technical issues when required.


• Investigate incidents and identify root causes, preventive actions and corrective measures.


• Prepare timely and professional incident, problem and technical reports for stakeholders.


• Assist in preparing system documentation and supporting ISO audit activities.


• Participate in new project implementation, including:


• Requirement gathering


• System setup and installation


• Configuration


• Testing


• Commissioning


• Post-implementation support


• Provide operational support and follow up proactively on outstanding incidents and issues.


• Participate in a 24×7 standby support roster when required.

What We Are Looking For

Must Have:

• Diploma or equivalent qualification in Computer Science, Information Technology or related discipline.


• 2–3 years of relevant experience in system/application support.


• Hands‑on experience supporting Unix/Linux environments.


• Good troubleshooting and analytical skills.


• Able to work independently as well as collaboratively within a team.


• Good command of written and spoken English.


• 24×7 standby support.

Good to Have:

• Experience with Microsoft Windows / Windows Server.


• Systems administration experience.


• Experience supporting applications running on Unix/Linux platforms.


• Exposure to databases and database‑related troubleshooting.


• Experience with virtualisation / VM environments.


• Knowledge or certification in ITIL.


• Windows Server or Unix/Linux certification.


• Experience in system upgrades, patching, deployment or commissioning.


• Experience working with external vendors or technical support teams.


• Exposure to ISO audit and IT documentation requirements.

The Right Candidate

We are looking for someone who is:

• Analytical and able to troubleshoot issues systematically.


• Proactive and responsive when handling incidents and service requests.


• Able to multitask, prioritise and manage competing operational requirements.


• Comfortable working under minimal supervision.


• Customer‑focused with good incident‑handling and communication skills.


• A team player with a strong sense of ownership.


• Motivated to learn and take on greater technical responsibilities.

Fresh graduates with relevant Unix/Linux knowledge or training may also be considered.

Why Join?

• Work in a mission-critical environment at Changi Airport.


• Gain hands‑on exposure to Unix/Linux systems, application support and infrastructure operations.


• Opportunity to participate in system implementation, upgrades and commissioning projects.


• Develop experience working with enterprise systems, vendors and operational stakeholders.


• Attractive remuneration package with completion and performance bonuses.

EA License No: 09C4235 I EA Reg: R1103307 (Hong Mei Lin)