UNIX Administrator (L3)- 6 months Contract

6 months Contract Good to have banking exposure

Role Overview

Hands-on UNIX L3 Administrator with strong expertise in IBM AIX, Linux infrastructure administration, complex troubleshooting, server migrations, automation, virtualization, and high-availability environments.

The candidate must be a technically strong, independent L3 engineer , capable of managing critical production incidents, executing complex UNIX migrations end-to-end, troubleshooting infrastructure failures, and driving automation and reliability improvements with minimal supervision.

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 .
• Handle OS patching, vulnerability remediation, security hardening, and production change management.
• Prepare migration runbooks, rollback plans, technical documentation, and post-migration validation.

Mandatory Technical Skills

• Strong hands-on experience in IBM AIX / UNIX L3 administration .
• Hands-on UNIX migration experience, advanced troubleshooting, and strong AIX/PowerVM technical expertise are mandatory.
• 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 .
• Strong knowledge of ITIL incident, problem, and change management.

Preferred Skills

• IBM Power hardware migration (POWER8/9/10).
• Red Hat Enterprise Linux administration and Veritas Cluster Server.
• Experience with Git, Jenkins, Terraform, and enterprise automation.
• Prior experience supporting mission-critical banking infrastructure