Unix Administrator (Contract) Rotational shift

ICON OUTSOURCING; Singapore; On-site; SGD 70,000 - 110,000; Full time

Benefits offered by this job

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Job summary

ICON OUTSOURCING in Singapore is seeking an experienced Senior System Administrator to manage and secure a mixed Solaris/Linux environment. The role covers system upgrades, DR planning, backups, and incident resolution, with 24/7 roster support for production services.

The ideal candidate will have 6–8 years in middleware, Unix/Linux, SAN storage, OS hardening, and automation scripting, plus cloud and data centre familiarity. Shift-based coverage is required.

Qualifications

• Bachelor’s degree in information technology, Information Systems, Computer Science, or a related field.
• Minimum 6-8 years of experience in system administration and support in Middleware, Unix, and Linux.
• Experience in working with SAN for Unix and Linux platforms.
• Experience in 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.
• Familiar with database administration and data centre operations will be an advantage.
• Provide 24/7 support on a rostered basis.
• Provide weekend and after office hours support for change implementation (for critical production services).
• Industry certification for public cloud administration preferred.

Responsibilities

• Perform system administration and maintenance in a heterogeneous environment (production, DR, test) of Sun Solaris and Linux servers.
• Perform system upgrades and enhancements on IT infrastructure components.
• Implement OS and product-specific security hardening and patches.
• Monitor obsolescence and renewal of system passwords and certificates.
• Implement backups and database archive operations for recoverability and continuity.
• Develop and implement disaster recovery plans and test regularly.
• Manage the application UAT and maintain the UAT environment.
• Provide second level system support and resolve incidents per SLA.
• Assist end-users and other IT resources with technical guidance (level 3).
• Diagnose problems and implement measures to prevent recurrence.

Skills

Unix/Linux Systems

Scripting (Unix/Linux)

Middleware experience

SAN storage

Backup & Monitoring

24/7 roster support

Disaster Recovery planning

Education

Bachelor's degree in IT/CS

Tools

Enterprise backup software

System monitoring tools

Job description

Responsibilities:

• Perform system administration and maintenance in a heterogeneous environment (production, DR, test) comprising of Sun Solaris servers and Linux-based servers
• Perform system upgrade and enhancement on IT infrastructure components
• Implement operating system and product-specific security hardening and patches
• Monitor obsolescence of IT infrastructure components (systems)
• Monitor 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 switch over exercises to ensure usability of standby and DR equipment
• Manage the application User Acceptance Test (UAT) and upkeep the use of UAT environment
• Provides technical support and guidance (level 3) to end-users, and other IT resources.
• Provide second level system support and resolve incidents and problems in accordance to established Service Level Agreement (SLA)
• Perform problem diagnosis on incidents and propose and implement measures to prevent recurrence

Requirements:

• Bachelor’s degree in information technology, Information Systems, Computer Science, or a related field
• Minimum 6 - 8 years of experience in system administration and support in Middleware, Unix and Linux systems
• Experience in working with SAN for Unix and Linux Platforms
• Experience in 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
• Familiar with database administration and data centre operations will be an advantage
• Provide 24/7 support on a rostered basis.
• Provide weekend and after office hours support for change implementation (for critical production services)
• 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

Professional Certifications

• Unix and Linux Certified System Administrator certifications
• Industry certification for public cloud administration preferred