Unix Administrator | Contract | Rotational Shift

Singapore, Singapore, Singapore on site Until 8/21/2026 8+ years exp First posted April 21, 2026 Last posted April 21, 2026
Job description

12 months renewable contract role.
Salary upto - $8,000 per month
Shift timings -
• 1st shift - 7am to 4pm (Mon-Fri)
• 2nd shift - 2pm to 11pm (Mon-Fri)
• 3rd shift - 10.30pm to 7.30am (Mon-Fri)
• 4th shift - 7.30am to 7.30pm (Sat-Sun)
• 5th shift - 7.30pm to 7.30am (Sat-Sun

Role:

- Perform system administration and maintenance in a heterogeneous environment (production, DR, test) comprising Sun Solaris servers and Linux-based servers.
- Conduct system upgrades and enhancements on IT infrastructure components.
- Implement operating system and product-specific security hardening and patches.
- Monitor obsolescence of IT infrastructure components (systems).
- Track expiry and perform renewal of system passwords and certificates.
- Implement a schedule of system backups and database archive operations to ensure data recoverability and business continuity.
- Develop and implement disaster recovery plans for IT infrastructure (systems) and conduct regular disaster recovery testing and component switchover exercises to ensure usability of standby and DR equipment.
- Provide second level system support and resolve incidents and problems in accordance with established Service Level Agreements (SLA).
- Perform problem diagnosis on incidents and propose and implement measures to prevent recurrence.
- Perform infrastructure capacity monitoring and planning.
- Monitor and perform performance tuning to optimize system performance.

Requirements:

- Bachelor’s degree in Information Technology, Information Systems, Computer Science, or a related field.
- Minimum 8 years of experience in system administration and support in Middleware, Unix, and Linux systems.
- Experience working with SAN for Unix and Linux platforms.
- Experience performing OS hardening and patching.
- Experience with enterprise backup and system monitoring and management software.
- Proficient in scripting for Unix and Linux-based environments to automate tasks.
- Familiarity with database administration and data centre operations is an advantage.
- Ability to provide 24/7 support on a rostered basis.
- Willingness to provide weekend and after office hours support for change implementation (for critical production services).

Professional Certifications
- Unix and Linux Certified System Administrator certifications.
- Industry certification for public cloud administration preferred.

About this role

Summary

Manage Unix/Linux systems, perform upgrades, security hardening, backups, and disaster recovery.

Job title

Unix Administrator

Experience level

8+ years

Minimum experience

8+ years exp

Industry

information technology

Location requirements

Singapore on-site,rotational shifts, 24/7 support required.

Salary

$96k+

Management role

No

Skills & keywords

Required skills

system administrationunixlinuxsecurity hardeningsystem upgradesbackup managementshell scripting

Preferred skills

cloud administrationdatabase administrationSAN

Specializations

unixlinuxsystem administrationsecurity hardeningdisaster recovery
Locations

Structured locations inferred from the posting.

Singapore

On-site City