Unix Administrator – VMware Specialist

RAPSYS TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A technology firm in Singapore seeks an experienced Unix Administrator with a specialization in VMware. Responsibilities include managing Unix/Linux servers, supporting VMware environments, and ensuring system security. Candidates must have a bachelor’s degree and 4+ years of Unix/Linux administration experience. Strong problem-solving skills are essential for this role.

Qualifications

• 4+ years of hands-on experience in Unix/Linux system administration.
• 3+ years of hands-on experience with VMware vSphere, ESXi, and vCenter.
• Experience with SAN/NAS storage systems.

Responsibilities

• Install, configure, and maintain Unix/Linux servers.
• Manage and support VMware vSphere environments.
• Document system configurations and troubleshooting steps.

Skills

Unix/Linux system administration

VMware vSphere

Shell scripting

Networking concepts

Problem-solving skills

Education

Bachelor’s degree in Computer Science or related field

Tools

VMware vSphere

RHEL

Job description

Overview

Role: Unix Administrator – VMware Specialist

Responsibilities

• Install, configure, and maintain Unix/Linux servers (RHEL).
• Manage, provision and support VMware vSphere environments, including ESXi hosts and vCenter.
• Perform system monitoring, performance tuning, and capacity planning.
• Implement and maintain system security, patching, and compliance in line with CIS benchmarks.
• Troubleshoot and resolve hardware, software, and networking issues, including application-to-database connectivity problems.
• File system and storage management, manage disk partitioning and logical volume management (LVM), including resizing and splitting mount points.
• Automate routine tasks using shell scripting (Bash, Perl, Python) or configuration management tools.
• Maintain backup and disaster recovery procedures for Unix and VMware systems.
• Collaborate with application teams to support deployments, upgrades, and system migrations.
• Document system configurations, procedures, and troubleshooting steps.
• Participate in on-call rotation and provide after-hours support as needed.

Required Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• 4+ years of hands-on experience in Unix/Linux system administration.
• 3+ years of hands-on experience with VMware vSphere, ESXi, and vCenter.
• Strong understanding of networking concepts (TCP/IP, DNS, NFS, etc.).
• Experience with storage systems (SAN/NAS) and backup solutions.
• Familiarity with ITIL practices and change management processes.

Preferred Qualifications

• VMware Certified Professional (VCP) certification.
• Linux Administration Certification (e.g., RHCSA, RHCE, CompTIA Linux+).

Soft Skills

• Strong analytical and problem-solving skills.
• Excellent communication and documentation abilities.
• Ability to work independently and in a team-oriented environment.
• Detail-oriented with a proactive mindset.