Unix Engineer - Patching and Vulnerability Management

HCL SINGAPORE PTE. LTD.; Singapore; On-site; SGD 60,000 - 120,000; Full time

Job summary

HCL SINGAPORE PTE. LTD. is seeking an experienced Linux/Unix System Administrator to manage patching, vulnerability management, and system operations. You will handle BIOS/firmware upgrades, log monitoring, and ensure SLA adherence across multiple OS environments.

The role requires 10–12 years of hands-on experience in Linux/Unix administration, strong communication, and the ability to work in a team-oriented, ever-changing setting with weekend/on-call duties as required.

Qualifications

• Degree in Information Technology or related field.
• 10–12 years of Linux/Unix system administration experience.
• Excellent verbal and written communication skills.
• Strong interpersonal skills.
• Experience in a SLA-driven environment.
• Willingness to work weekends per roster and on-call support when needed.
• Hands-on with RHEL/HP-UX/Solaris/AIX servers.
• Experience with patch and vulnerability management.
• Troubleshooting OS and hardware issues.
• Knowledge of RAID technologies (basic) and clustering basics.
• Familiarity with server management tools.

Responsibilities

• Patching and vulnerability management for Linux, Solaris, HP-UX, AIX, Solaris VM, and IBM VIO.
• System administration of Linux/Unix environment.
• Patch assessment and deployment planning.
• BIOS and firmware upgrades.
• Log monitoring and maintenance.

Skills

Linux/Unix System Administration

Patch management

Vulnerability management

OS troubleshooting

Communication skills

Interpersonal skills

SLA-driven environment experience

Teamwork and adaptability

Education

Bachelor's Degree in Information Technology

Tools

BigFix

SCCM

Job description

Roles & Responsibilities:

• To be responsible for the patching and vulnerability management of all Linux, Solaris, HP-UX, AIX Server, Solaris VM and IBM VIO.
• System Administration of Linux/Unix environment.
• Perform Patch assessment and recommend/plan deployment.
• Bios upgrades and firmware upgrades.
• Log monitoring/maintenance.

Skills Required:

• Bachelor's Degree in Information Technology.
• 10-12 years of Experience in Linux/Unix System Administration.
• Excellent Verbal and written communication skills.
• Good interpersonal Skills.
• The candidate should have worked in a SLA driven environment.
• Ability to work in a flexible, team-oriented and constantly changing environment.
• Able to work on weekends as per Roster and perform On-call support (during weekdays) as and when needed.
• Working experience on RHEL/HP-UX/Solaris/AIX Servers.
• Knowledge on Cluster management software.
• Patch management and Vulenrability Management (Must Have).
• Troubleshooting skills in OS & Hardware related issues (Must Have).
• Extensive Experience in OS and Hardware/Firmware patching. (Must Have).
• Experience on Patch management tools like BigFix, SCCM etc. (Must Have).
• Experience on Automation of Pre and Post patching tasks.
• Hand-on knowledge on various RAID technologies (RAID 0+1, RAID 1, RAID 5 etc.) ( Should have basic knowledge).
• Knowledge on Clustering (geo cluster, multinodes passive/active) ( Should have basic knowledge).
• Knowledge on server management tools.