GlobalSource IT · 1 day ago
Senior AIX & Linux Administrator
Cleveland, OH
Full-time
Hybrid
Senior Level, Lead/Staff
$110K/yr - $130K/yr
8+ years expGlobalSource IT is seeking a Senior AIX & Linux Administrator to support critical enterprise systems. The role involves managing a mixed AIX and Red Hat Enterprise Linux environment, focusing on reliability, security, and performance while leading automation and modernization efforts.
Information TechnologySoftware
Hiring Manager
Heidi Dalibor
Responsibilities
Engineering and administering AIX 5.3/7.x on IBM Power7/Power8/Power9 systems using HMC and PowerVM (LPAR/VIOS)
Designing LPAR layouts, CPU/memory tuning, and I/O virtualization (NPIV, vSCSI, SEA)
Building and maintaining images with NIM, including mksysb strategies, patching, and OS upgrades
Configuring and supporting High Availability using PowerHA SystemMirror, including documented and tested failover procedures
Planning and executing LPM, firmware updates, and frame maintenance with minimal downtime
Troubleshooting complex performance issues using tools such as nmon, vmstat, sar, and topas
Administering Red Hat Enterprise Linux 7/8/9 across VMware ESXi and KVM, including developing and enforcing gold images and hardening baselines
Automating provisioning and configuration with Ansible and supporting its integration into CI/CD workflows
Managing kernel and OS patching, repository maintenance, and vulnerability remediation
Monitoring and tuning system performance across CPU, memory, I/O, and filesystems
Owning OS and application data backup/restore using IBM Spectrum Protect (TSM), including regular restore testing
Administering enterprise job schedulers (HCL Workload Automation, Autosys)
Partnering with network and storage teams on SAN zoning, multipathing, and throughput optimization
Leading ITIL-aligned incident, problem, and change management processes
Driving capacity planning, forecasting, and infrastructure lifecycle management
Mentoring junior administrators and reviewing designs, automation, and documentation for quality and security
Participating in on-call rotations and after-hours maintenance, with a focus on reducing manual work through automation
Qualification
Required
Bachelor's or Master's in Information Systems, Computer Science, or a related field
8+ years administering AIX (5.3/7.x) on IBM Power systems and Red Hat Enterprise Linux 7/8/9 in large enterprise environments
Hands-on experience with HMC, NIM, PowerHA SystemMirror, and Live Partition Mobility
Strong scripting skills (Korn/Bourne shell, Python, or Perl)
Experience supporting virtualized environments (VMware ESXi, KVM) and enterprise schedulers (HCL Workload Automation, Autosys)
Knowledge of IBM Spectrum Protect (TSM) backup/restore processes and DR execution
Solid grounding in server hardware, SAN/storage virtualization (NPIV, vSCSI), and core networking concepts
Excellent communication, documentation, and cross-team collaboration skills
Ability to participate in on-call rotation and support after-hours maintenance
Proven experience mentoring junior engineers or leading infrastructure projects
Preferred
Experience with AIX migrations (6.x or legacy 5.3)
Familiarity with hybrid cloud environments (AWS, Azure)
Strong Ansible automation experience, including CI/CD integration
Deep experience in performance tuning using AIX and Linux diagnostic tools
Experience with ITIL-aligned change and incident management processes
Knowledge of security frameworks, hardening standards, and vulnerability management
Company
GlobalSource IT
GlobalSource IT is an information technology company offering technology and software development services.
201-500 employees
H1B Sponsorship
GlobalSource IT has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2020 (1)
Funding
Current Stage
Growth StageLeadership Team
Bob R.
Advisory Partner
Company data provided by crunchbase