Unix Engineer

Helius Technologies; Singapore; On-site; SGD 100,000 - 167,000; Full time

Job summary

Helius Technologies Singapore is seeking an experienced UNIX Systems Administrator (L3) to support IBM AIX and RHEL across enterprise platforms. You will perform migrations, OS upgrades, hardware refreshes, and data center modernization initiatives.

Responsibilities include managing PowerVM, VIOS, LPAR, HMC, NPIV, SEA, and PowerHA clustering, plus disaster recovery planning and storage migration. You will implement automation using Shell/Bash/KSH, Python, and Ansible, and troubleshoot

Qualifications

• Proven hands-on experience in IBM AIX L3 administration.
• Experience with UNIX server migration, OS upgrades, and technology refresh.
• Advanced knowledge of PowerVM, VIOS, LPAR, HMC, NIM, and PowerHA.
• Strong understanding of SAN, LVM, storage migration, clustering, and disaster recovery.
• Proficiency with troubleshooting tools: nmon, topas, vmstat, iostat, sar, errpt, tcpdump.
• Strong scripting capabilities in Shell/Bash/KSH, Python, and Ansible.
• Experience with ServiceNow, Splunk, Dynatrace, Nagios, IBM Storage Protect, or Veritas NetBackup.

Responsibilities

• Provide L3 support for enterprise UNIX platforms (AIX and RHEL).
• Perform UNIX server migrations, OS upgrades, hardware refresh, data center migrations, and technology modernization.
• Administer PowerVM, VIOS, LPAR, HMC, NPIV, and SEA.
• Manage AIX Live Partition Mobility (LPM), NIM, mksysb, alt_disk_copy, and system recovery.
• Configure and troubleshoot PowerHA, clustering, failover, and disaster recovery.
• Manage SAN storage, LVM, JFS2, XFS, NFS, multipathing, and file system migrations.
• Perform advanced troubleshooting, performance tuning, capacity management, and root-cause analysis.
• Develop automation scripts using Shell, KSH, Bash, Python, and Ansible.

Skills

AIX L3 administration

UNIX migrations

OS upgrades

PowerVM/VIOS/LPAR/HMC

PowerHA/DR

SAN/LVM/storage migration

Automation scripting

Monitoring & diagnostics

ServiceNow/Splunk/Nagios tooling

Tools

nmon/topas/vmstat/iostat/sar/errpt/tcpdump

Job description

Key Responsibilities

• Provide L3 support for enterprise UNIX platforms, including IBM AIX and Red Hat Enterprise Linux (RHEL).
• Perform UNIX server migrations, OS upgrades, hardware refresh, data center migrations, and technology modernization.
• Administer IBM PowerVM, LPAR, VIOS, HMC, NPIV, and SEA.
• Manage AIX Live Partition Mobility (LPM), NIM, mksysb, alt_disk_copy, and system recovery.
• Configure and troubleshoot PowerHA, clustering, failover, and disaster recovery.
• Manage SAN storage, LVM, JFS2, XFS, NFS, multipathing, and file system migrations.
• Perform advanced troubleshooting, performance tuning, capacity management, and root-cause analysis.
• Develop automation scripts using Shell, KSH, Bash, Python, and Ansible.

Mandatory Technical Skills

• Strong hands-on experience in IBM AIX / UNIX L3 administration.
• Proven experience in UNIX server migration, OS upgrades, and technology refresh.
• Advanced knowledge of PowerVM, VIOS, LPAR, HMC, NIM, and PowerHA.
• Strong understanding of SAN, LVM, storage migration, clustering, and disaster recovery.
• Proficiency in troubleshooting tools: nmon, topas, vmstat, iostat, sar, errpt, and tcpdump.
• Strong scripting capabilities in Shell/Bash/KSH, Python, and Ansible.
• Experience with ServiceNow, Splunk, Dynatrace, Nagios, IBM Storage Protect, or Veritas NetBackup.