AS400 Admin-L3

Role Purpose

The purpose of this role is to bridge client's functional and technical requirements at the module level by assisting in outlining technical specifications, performing basic configuration, and troubleshooting initial system issues.

AS400 Administrator (L3) – IBM i Infrastructure & Network Lead

Primary Skills

IBM i (AS400) Administration

IBM i OS / PTF Management

Power Systems, HMC & LPAR Administration

BRMS Backup & Recovery

HA/DR (iCluster, Replication)

JDE World Infrastructure

Performance Tuning & Capacity Planning

TCP/IP Networking, DNS, VPN, MPLS

Firewall, SSL & Network Security

Infrastructure Migration & Cutover Management

Secondary Skills

CL Programming

SQL/DB2 for i

Middleware Integration (Sterling, InfoConnect, APIs)

Azure & Skytap Connectivity

Storage & SAN Administration

Incident, Change & Release Management

ITIL Processes

Technical Documentation & Runbooks

Vendor & Infrastructure Coordination

Key Responsibilities

Administer and support IBM i (AS400) environments including OS upgrades, PTFs, LPARs, storage, and performance optimization.

Lead AS400 environment segregation, migration, cloning, and infrastructure build activities.

Manage IBM i networking including TCP/IP, DNS, VPN, MPLS, firewall rules, routing, and SSL certificates.

Establish and validate connectivity between IBM i, JDE World, cloud platforms, middleware, and third-party systems.

Execute migration, cutover, rollback, and go-live activities supporting business separation programs.

Configure and support HA/DR solutions, replication, backup, recovery, and disaster recovery testing.

Manage user access, security policies, authorization lists, auditing, and compliance controls.

Support interface integrations including EDI, banking systems, APIs, Sterling, and InfoConnect.

Drive incident, problem, change, release, and capacity management activities.

Own infrastructure sizing, network readiness, migration runbooks, cutover plans, DR documentation, and hypercare support.