IBM iSeries (AS/400) Infrastructure Administrator

About the role

A remote IBM iSeries (AS/400) Infrastructure Administrator position based in Colombia, open to L1, L2 and L3 engineers. The role leads the administration, optimization, modernization and support of enterprise IBM i environments and acts as the highest level of technical escalation, with strong expertise in performance tuning, security, backup and recovery, high availability, disaster recovery, storage, HMC, VIOS and IBM Power systems.

Key responsibilities

• Provide L3 technical leadership and mentoring to L1 operators and L2 administrators, and handle complex infrastructure incidents and critical escalations.
• Develop operational procedures, standards and IBM i best practices, and support architecture reviews and infrastructure planning.
• Administer and optimize IBM i environments, perform performance analysis, system assessments and capacity planning, and monitor system health, availability and operational metrics.
• Prepare executive-level reports on infrastructure performance and availability.

Required profile

• Experience administering production IBM i environments and handling critical incidents.
• Strong troubleshooting, analytical and problem-solving skills, and excellent communication and stakeholder management skills.
• Willingness to participate in 24x7 on-call and critical incident support.

Required skills

• IBM i / AS400 infrastructure administration, IBM Power Systems and LPARs.
• HMC and VIOS administration; IBM i performance management and capacity planning.
• BRMS, backup and recovery, high availability and disaster recovery.
• IBM i security, SSL and digital certificates, SSH and secure key management.
• IFS, SAN, storage and tape libraries; TCP/IP networking on IBM i.