Bull City Talent Group ยท 2 days ago
SR. AIX Linux Administrator
Greater Cleveland
Full-time
Hybrid
Senior Level, Lead/Staff
8+ years expBull City Talent Group's direct client is seeking a Senior AIX/Linux Administrator to provide technical support and serve as the SME for enterprise-wide AIX and Linux servers. The role involves daily administration, optimization, troubleshooting, and mentoring junior administrators in a highly virtualized environment.
ConsultingRecruitingStaffing Agency
Hiring Manager
Lexy Doane
Responsibilities
Engineer and administer AIX 5.3/7.x on IBM Power7/Power8/Power9 with HMC and PowerVM (LPAR/VIOS); design LPAR layouts, CPU/memory tuning, and I/O virtualization (NPIV, vSCSI, SEA)
Build and maintain images with NIM; create repeatable mksysb strategies; perform OS upgrades and patching
Configure and support High Availability using PowerHA SystemMirror (formerly HACMP); document and test failover procedures
Plan and execute Live Partition Mobility (where applicable), firmware updates, and frame maintenance with minimal downtime
Troubleshoot complex performance issues using nmon, topas, vmstat, sar, and other diagnostic tools; drive root cause analysis
Administer Red Hat Enterprise Linux 7/8/9 on x86 across VMware ESXi and KVM; standardize gold images and hardening baselines
Automate provisioning/configuration with Ansible; codify common tasks and enforce via pipelines
Manage kernel/OS patching, package repositories, and vulnerability remediation in partnership with Security
Monitor and tune system performance (CPU, memory, I/O, filesystem); analyze and resolve production incidents
Own backup/restore for OS and application data using IBM Spectrum Protect (TSM); run regular restore tests and document RPO/RTO coverage
Administer enterprise schedulers (HCL Workload Automation, Broadcom Autosys) on AIX; coordinate with application teams
Partner with Network and Storage teams on SAN zoning, multipathing, and throughput optimization; validate NPIV/vSCSI designs
Lead incident, problem, and change management (ITIL-aligned); write clear change plans, perform post-incident reviews, maintain runbooks
Drive capacity planning and forecasting; provide estimates for new workloads, migrations, and refresh projects
As a SME mentor junior administrators; review designs and automation for quality and security; champion best practices across the team
Participate in an on-call rotation and after-hours maintenance windows; continuously reduce toil through automation and better observability
Qualification
Required
8+ years of progressively responsible experience administering AIX (5.3/7.x) on IBM Power7/Power8/Power9 with PowerVM/VIOS, and administering Red Hat Enterprise Linux 7/8/9 in enterprise environments
Hands-on experience with HMC, NIM, PowerHA SystemMirror (HACMP), and Live Partition Mobility
Strong skills in scripting (Korn/Bourne shell, Perl, or Python) for automation and process improvement
Experience supporting virtualized environments (VMware ESXi, KVM) and enterprise job schedulers (HCL Workload Automation, Broadcom Autosys)
Knowledge of backup/restore procedures using IBM Spectrum Protect (TSM) and proven ability to execute DR tests
Solid foundational knowledge in server hardware, SAN/storage virtualization (NPIV, vSCSI), and networking fundamentals
Effective communication, documentation, and collaboration skills with cross-functional teams
Ability to participate in on-call rotation and perform after-hours maintenance as needed
Leadership experience mentoring junior administrators or leading infrastructure projects
Bachelor's or Master's degree in Information Systems, Computer Science, or related IT field
Preferred
Experience with AIX 6.x or legacy AIX 5.3 migrations in production environments
Exposure to cloud platforms (AWS, Azure) for hybrid infrastructure integration
Experience with Ansible automation at scale, including CI/CD integration of infrastructure code
Performance tuning expertise using nmon, topas, vmstat, sar, perf tools
Experience with ITIL-aligned change/incident/problem management processes
Familiarity with security compliance frameworks and vulnerability management (e.g., CIS hardening, patch orchestration)
Company
Bull City Talent Group
Bull City Talent Group is a consultancy that offers hiring, recruitment and technology consultation services.
11-50 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase