IBM i (IBMi) System Administrator

Job Title: IBM i (IBMi) System Administrator

Location: Hybrid/Remote - Phoenix AZ

Contract Type: Sub-contractor not Allowed / only w2

Top 3 skills required for this role:
Administer and support IBM i (OS/400) systems including system configuration performance monitoring capacity planning and lifecycle maintenance.
Manage IBM Power Systems virtualization including VIOS configuration LPAR provisioning virtual networking and virtual storage mappings.
Administer Fibre Channel SAN connectivity: zoning masking and path management in coordination with storage/network teams.


Position Summary
We are seeking an experienced IBM i (IBMi) System Administrator to support and enhance a mission-critical IBM i environment integrated with AIX/Power Systems VIOS Fibre Channel networking and enterprise SAN storage. This role is responsible for platform reliability performance security (including SSL certificate management) and operational excellence across development test and production environments.
Key Responsibilities
Administer and support IBM i (OS/400) systems including system configuration performance monitoring capacity planning and lifecycle maintenance.
Manage IBM Power Systems virtualization including VIOS configuration LPAR provisioning virtual networking and virtual storage mappings.
Administer Fibre Channel SAN connectivity: zoning masking and path management in coordination with storage/network teams.
Configure maintain and troubleshoot Fibre Channel switches (e.g. Brocade/Cisco) including firmware updates port health and best-practice zoning standards.
Support SAN storage operations (provisioning LUN management multipathing replication concepts and change coordination).
Manage SSL/TLS certificates for IBM i services and integrated applications (certificate requests/CSRs renewals installation rotation and troubleshooting).
Perform OS PTF and firmware maintenance for IBM i VIOS and related Power Systems components; plan and execute maintenance windows and rollback strategies.
Implement and maintain backup recovery and high availability processes (e.g. BRMS journaling replication/HA tools as applicable); participate in DR testing.
Monitor system alerts/logs resolve incidents perform root-cause analysis and drive problem management to prevent recurrence.
Harden systems and maintain security controls (user/profile management auditing encryption standards vulnerability remediation and access reviews).
Create and maintain documentation for configurations runbooks diagrams and operational procedures.
Collaborate with application database storage and network teams to deliver stable services and support project work (migrations upgrades integrations).
Participate in on-call rotations and provide after-hours support for critical incidents and planned changes.

Required Qualifications
3 years of hands-on IBM i system administration experience in an enterprise environment.
Experience administering Power Systems virtualization with VIOS (LPAR provisioning virtual SCSI/NPIV virtual networking).
Strong working knowledge of Fibre Channel concepts including zoning WWPNs multipathing and SAN troubleshooting.
Experience working with Fibre Channel switches (Brocade and/or Cisco MDS) and SAN storage platforms.
Experience managing SSL/TLS certificates (CSR creation renewals chain/intermediate handling installation and validation).
Knowledge of IBM i security fundamentals (user/profile management authorities auditing and change control).
Comfortable troubleshooting complex cross-domain issues involving OS virtualization storage and network components.
Strong documentation skills and ability to follow/maintain operational runbooks.
Preferred Qualifications
Experience with high availability and replication solutions (e.g. PowerHA MIMIX iCluster or similar).
Experience with BRMS save strategies and restore/DR planning for IBM i.
Working knowledge of AIX administration and/or HMC management for Power Systems.
Scripting/automation experience (e.g. CL RPG utilities Python Ansible shell scripting) and monitoring tools.
Familiarity with compliance frameworks and audit support (SOX PCI HIPAA etc. as applicable).
IBM certifications (e.g. IBM i Power Systems or security-related credentials).
Working Conditions
May require participation in an on-call rotation and occasional after-hours maintenance.
Work involves change management scheduled maintenance windows and incident response for production systems.
Some travel to data centers or other sites may be required (if applicable).