AS400/iSeries Admin

IBM iSeries Platform Administrator - Job Description:
We are seeking an experienced IBM iSeries Platform Administrator to manage and maintain a complex IBM iSeries (Power Systems) environment . The role involves ensuring the stability, security, performance, and high availability of the platform while supporting mission-critical Supply Chain, Warehouse Management, Inventory, and Financial applications. The administrator will be responsible for infrastructure management, system tuning, security, backup and recovery, and automation to enhance operational efficiency.

Responsibilities:
1. System Administration & Infrastructure Management
Manage and maintain running on IBM iSeries.
Install, upgrade, and apply PTFs (Program Temporary Fixes) and OS patches.
Perform IPL (Initial Program Load) and system recovery as needed.
Monitor and optimize CPU, memory, and disk utilization.
Administer IBM Full System Flashcopy for HA and disaster recovery.
Ensure business continuity through replication and backup strategies.
Conduct DR testing and failover simulations to validate recovery processes.
Support third-party core applications for Warehouse Management (WMS), Inventory, and Financials.
Manage DB2 for i databases, including performance tuning, backup, and optimization.
Troubleshoot batch jobs, job queues, and integration issues with external systems.
Collaborate with application teams to optimize database and application performance.
Implement role-based access control (RBAC), user authentication, and encryption mechanisms.
Ensure compliance with security best practices and industry regulations.
Conduct security audits and vulnerability assessments.
Manage user profiles, object authorities, and system auditing.
Utilize IBM Navigator for iSeries and ACS (Access Client Solutions) for system monitoring.
Optimize workload balancing, job scheduling, and system performance tuning.
Analyze system logs and recommend proactive improvements.
Automate recurring administrative tasks using CL (Control Language) and SQL scripting.
Support integration with cloud and enterprise systems.
Work on API enablement and modernization projects to extend IBM i capabilities.
Act as L2/L3 support for IBM iSeries issues.
Troubleshoot hardware, OS, and application-related issues.
Document system configurations, troubleshooting steps, and best practices.
Required Skills:
Extensive experience managing IBM iSeries AS/400 environments.
Strong knowledge of LPAR management, system tuning, and storage management.
Hands-on experience with IBM Full System Flashcopy for HA/DR.
Expertise in DB2 for iSeries administration, performance tuning, and query optimization.
Familiarity with IBM iSeries Access Client Solutions (ACS) and IBM Navigator for iSeries.
Proficiency in CL programming, SQL scripting, and job automation.
Understanding of IBM iSeries security, user profiles, object-level security, and auditing.
Experience in implementing MFA, TLS, and encryption standards.
Knowledge of SOX, PCI-DSS, or other compliance frameworks.
Ability to monitor system performance, analyze bottlenecks, and optimize workloads.
Experience with job scheduling tools and workload automation.
Experience working with third-party WMS, Inventory, and Financial applications.
Exposure to API integrations and modernization tools.
Knowledge of cloud integration (AWS, Azure, IBM Cloud) with iSeries is a plus.
Strong analytical and problem-solving skills.
Excellent communication and documentation abilities.
Ability to work independently and collaborate with cross-functional teams.
Preferred Qualifications:
IBM Certified System Administrator – IBM iSeries
Experience in large-scale, high-performance IBM iSeries environments
Exposure to AI/ML, cloud integrations, and enterprise data platforms on IBM iSeries