AS/400 Administrator

GeorgiaTEK Systems Inc.; Medellín; Presencial; COP 249.120.000 - 435.961.000; Jornada completa

Descripción de la vacante

GeorgiaTEK Systems Inc. in Colombia seeks an IBM iSeries (AS/400) Infrastructure Administrator – L3 to lead and optimize enterprise IBM i environments.

The role requires deep expertise in performance tuning, security, backups, HA/DR, storage management, and system upgrades, with responsibility for mentoring L1/L2 teams and serving as the highest technical escalation for IBM i infrastructure. The successful candidate will design and implement robust operations procedures, generate executive-level

Formación

• 11+ years of experience in IBM iSeries (AS/400) system administration.
• Expert in performance tuning, security, backup and recovery, high availability and disaster recovery.
• Ability to mentor L1 and L2 support teams and provide technical escalation for IBM i infrastructure.

Responsabilidades

• Provide technical leadership and mentoring to L1 Operators and L2 Administrators.
• Develop operational procedures, standards, and best practices for IBM i administration.
• Analyze and optimize system performance and capacity planning.
• Generate executive-level reports on system availability and performance.
• Design and administer IBM i security policies and controls, including SSL/SSH and certificate management.
• Coordinate backup, recovery, DR planning, testing, and failover activities.
• Design, implement, and administer HA/DR environments to meet RPO/RTO goals.
• Administer storage environments, IFS, and SAN connectivity; perform storage expansion and tuning.
• Configure TCP/IP networking on IBM i systems and manage network connectivity for related hardware.
• Manage Advanced Job Scheduler, tape library, and firmware upgrades; oversee HMC and VIOS administration.

Descripción del empleo

Job Title: IBM iSeries (AS/400) Infrastructure Administrator – L3

Experience: 11+ Years

Location: Colombia - Medellin / Bogota (LATAM)

Job Summary:

We are seeking a highly experienced IBM AS/400 (iSeries) System Administrator - L3 to lead the administration, optimization, modernization, and support of enterprise IBM i environments. The ideal candidate will serve as the highest level of technical escalation for IBM i infrastructure, providing expertise in performance tuning, security, backup and recovery, high availability, disaster recovery, storage management, and system upgrades.

The role requires strong technical leadership, solution design capabilities, vendor coordination, and the ability to mentor L1 and L2 support teams while ensuring the reliability, availability, and security of business-critical IBM i platforms.

Key Responsibilities

Technical Leadership & Escalation Management

• Provide technical leadership and mentoring to L1 Operators and L2 Administrators.
• Develop operational procedures, standards, and best practices for IBM i administration.

System Administration & Performance Optimization

• Analyze and optimize system performance, Assessments and capacity planning.
• Generate executive-level reports on system availability, performance, and operational metrics.

Security Administration

• Design and administer IBM i security policies and controls.
• Implement and maintain SSL Certificates, Digital Certificates, SSH Security, Secure Key Generation
• Support security audits, compliance requirements, and vulnerability remediation activities

Backup, Recovery & Business Continuity

• Ensure successful execution and monitoring of backup schedules.
• Analyze backup failures, unsaved objects, and BRMS-related issues.
• Develop and maintain backup and recovery strategies aligned with business requirements

High Availability & Disaster Recovery

• Design, implement, and administer High Availability (HA) and Disaster Recovery (DR) environments.
• Lead DR planning, testing, failover, and failback activities.
• Ensure HA/DR environments meet organizational RPO and RTO objectives.

Storage Administration

• Administer internal and external storage environments.
• Perform storage expansion, disk balancing, performance tuning, and storage security configuration.
• Administer the Integrated File System (IFS).

Network & Infrastructure Management

• Design, configure, and troubleshoot TCP/IP networking on IBM i systems.
• Administer network connectivity for servers, HMCs, tape libraries, and integrated services.

Job & Workload Management

• Administer Advanced Job Scheduler environments.
• Design and manage job scheduling strategies for production workloads.

Tape Library & Device Administration

• Administer enterprise tape library infrastructure.
• Manage tape devices, firmware upgrades, media Lifecycle, Tape movement and retention policies.

System Maintenance & Upgrades

• Plan and execute IBM i operating system upgrades & PTF Management
• Lead infrastructure maintenance and upgrade activities.
• Support application deployments across all IBM i partitions.

HMC Administration

• Install, configure, and administer Hardware Management Consoles (HMC).
• Create and manage managed systems, frames, and partitions.
• Perform HMC software updates and upgrades.
• Configure user access, security policies, and system monitoring.
• Maintain HMC backups and recovery procedures.
• Plan and execute IBM Power server firmware upgrades.
• Coordinate firmware updates with business and application teams.
• Validate compatibility of firmware, OS, HMC, and VIOS levels.
• Perform pre-upgrade and post-upgrade health checks.
• Troubleshoot firmware-related issues and escalations.
• Call home Setup & SSL Certificate update

VIOS Administration

• Install, configure, and maintain Virtual I/O Servers (VIOS).
• Configure Virtual SCSI, NPIV, Virtual Ethernet, and Shared Ethernet Adapters (SEA).
• Manage storage presentations and SAN connectivity.
• Perform VIOS upgrades, patching, and troubleshooting.
• Ensure high availability and redundancy of virtualized resources.
• Perform LPAR disk management (add /remove disks for LPAR) on VIOS
• Setup Virtual Media Library management on VIOS for IBM i LPARs (OS Load). Configure VTLs for backup

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Vendor & Stakeholder Management

• Coordinate with IBM and Third-party vendors for problem resolution and support cases.
• Participate in architecture reviews and infrastructure planning discussions.
• Provide technical consultation to project teams and business stakeholders.
• Lead service improvement initiatives and operational governance meetings.

Work Environment

• 24x7 enterprise production support environment.
• Participation in on-call rotations and critical incident management.
• Lead planned maintenance, upgrades, migration projects, and disaster recovery exercises outside business hours when required.