iSeries (AS/400) Infrastructure Administrator – L3
Experience: 11+ Years

Job Summary:
We are seeking a highly experienced AS/400 (iSeries) System Administrator - L3 to lead the administration, optimization, modernization, and support of enterprise i environments. The adecuado candidate will serve as the highest level of technical escalation for 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 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 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 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 ob

📌 iSeries (AS/400) Infrastructure Administrator – (Bogotá)
🏢 HCLTech
📍 Bogotá