IBM iSeries (AS/400) Infrastructure Administrator – L3

Location: Bogotá, LATAM

Duration: Long Term

Key Responsibilities

- Lead administration, optimization, troubleshooting, and L3 escalation for enterprise IBM i environments.
- Perform advanced performance tuning, system assessments, capacity planning, and root-cause analysis.
- Design and administer HMC, IBM Power Systems, LPARs, and VIOS environments.
- Manage VIOS Virtual SCSI, NPIV, Virtual Ethernet, SEA, SAN connectivity, and LPAR disk allocation.
- Design and maintain BRMS backup/recovery strategies and lead complex recovery activities.
- Design, administer, and test HA/DR environments, including failover/failback and RPO/RTO validation.
- Lead IBM i security, including access controls, SSL/digital certificates, SSH, secure key management, audits, and vulnerability remediation.
- Engineer storage, IFS, SAN connectivity, disk balancing, expansion, and performance optimization.
- Design and troubleshoot IBM i TCP/IP networking and infrastructure connectivity.
- Administer Advanced Job Scheduler and optimize production workloads.
- Lead IBM i OS upgrades, PTF management, HMC/VIOS upgrades, and IBM Power firmware upgrades.




- Validate compatibility across Power firmware, HMC, VIOS, and IBM i OS levels.
- Administer enterprise tape libraries, VTLs, Virtual Media Library, and backup devices.
- Coordinate complex technical issues with IBM and third-party vendors.
- Mentor L1/L2 teams and establish operational standards, procedures, and best practices.
- Lead infrastructure improvement, architecture reviews, maintenance, migration, and DR initiatives.

Must-Have Skills

- 5+ years IBM i / AS400 Infrastructure Administration
- HMC + LPAR Administration
- Advanced VIOS Administration
- IBM Power Systems / Firmware
- BRMS / Backup & Recovery
- HA/DR Design & Administration
- IBM i Performance Tuning & Capacity Planning
- Storage / SAN / IFS
- IBM i Security / SSL / SSH
- IBM i OS Upgrades & PTF Management
- TCP/IP Networking
- Advanced Job Scheduler
- Enterprise Production Support / L3 Escalation

Good to Have

NPIV, Virtual SCSI, SEA, Virtual Media Library, VTL, PowerHA/HA technologies, tape libraries, Call Home, security compliance, DR exercises, infrastructure modernization, and vendor management.

📌 Infrastructure Administrator (Bogotá)
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