iSeries/AS400 Infrastructure Lead — HA/DR & Security

HCLTech; Buenos Aires; Presencial; ARS 1.200.000 - 1.800.000; Jornada completa

Descripción de la vacante

HCLTech in Buenos Aires is seeking an experienced AS/400 (iSeries) System Administrator - L3 to lead administration, optimization, modernization, and support of enterprise i environments. You will act as the highest technical escalation for i infrastructure, driving performance tuning, security, backup and recovery, HA/DR, and upgrades.

The role requires strong technical leadership, vendor coordination, and mentoring of L1/L2 support teams while ensuring reliability, availability and security of

Responsabilidades

• Technical Leadership & Escalation Management: Provide guidance to L1/L2 teams and set ops standards.
• System Administration & Performance Optimization: Analyze and optimize system performance and capacity.
• Security Administration: Design and enforce i security controls, SSL/Digital Certificates, SSH security.
• Backup, Recovery & Business Continuity: Oversee backups, recovery planning, and DR readiness.
• High Availability & Disaster Recovery: Design and manage HA/DR environments and tests.
• Storage Administration: Manage internal/external storage, IFS, and performance tuning.
• Network & Infrastructure Management: Configure TCP/IP networking and connectivity for i systems.
• Job & Workload Management: Administer Advanced Job Scheduler and production workload strategies.
• Tape Library & Device Administration: Manage tape devices, firmware, lifecycle, and retention policies.
• System Maintenance & Upgrades: Plan OS upgrades and PTF management across partitions.
• HMC Administration: Install/configure/manage HMC, firmware upgrades, user access and backups.
• VIOS Administration: Install and maintain VIOS, configure SEA/NPIV, storage presentations, upgrades.
• Vendor & Stakeholder Management: Coordinate with vendors, participate in architecture reviews and governance.
• Work Environment: 24x7 enterprise production support, on-call rotations, and upgrade/ migration leadership.

Descripción del empleo

HCLTech in Buenos Aires is seeking an experienced AS/400 (iSeries) System Administrator - L3 to lead administration, optimization, modernization, and support of enterprise i environments. You will act as the highest technical escalation for i infrastructure, driving performance tuning, security, backup and recovery, HA/DR, and upgrades.

The role requires strong technical leadership, vendor coordination, and mentoring of L1/L2 support teams while ensuring reliability, availability and security of