# AS/400 IBM Developer

> Qode · Oklahoma, United States (Hybrid) · Contract · Posted 2026-09-14

**Workplace:** hybrid

## Description

**Client: State of Oklahoma - Government Agency**

**Job Title: AS400 Developer/Admin (Contractor)**

**Term: 1-year contract - 20 hours a week**

**Pay Rate: $50/Hr - $60/Hr**

**Location: Oklahoma City, OK (Hybrid options available) must be local**

**Work Authorization: USC or GC ONLY no other Visa considered**

**Scope:** Looking for a PT AS400 Developer/Admin for a long-term contract engagement. This critical resource will provide essential application maintenance, database management, and application-level administration services for OID’s core IBM AS/400 (IBM i Series) environment.

**Experience:**

-   5 years of hands-on experience in AS400 (IBM i, iSeries) application development and support.
-   Exceptional proficiency in RPG IV (ILE RPG), RPGLE, CL, and SQL on DB2 for i.
-   Prior experience working in a hosted/managed AS400 environment, collaborating with external hosting providers (such as Ensono) to resolve infrastructure or environmental issues.
-   Proven experience in IBM i work management, subsystem coordination, application security, and user profile management.
-   Strong background in file transfer automation (FTP, SFTP) and managing external integrations.

**Responsibilities:**

-   Maintain, modify, and optimize custom legacy application code written in RPG, RPG III, RPG IV (ILE RPG), RPGLE, and Control Language (CL).
-   Investigate and troubleshoot operational bugs, batch run anomalies, and user reported system issues.
-   Update existing logic to adapt to regulatory changes, licensing requirements, and agency business process updates.
-   Serve as the primary technical point of contact to coordinate with the hosting provider for system maintenance, OS patching schedules, database utilities, and environmental adjustments.
-   Manage application-level security configurations, including user profiles, object level authority, and verify system audit logs (QAUDJRN) to maintain system integrity.
-   Manage local job queues, active subsystems, and application-level job schedulers.
-   Coordinate with Ensono’s storage and backup operations teams to ensure application backup windows, disaster recovery testing, and restoration verifications are carried out successfully.
-   Query, manage, and tune DB2 for i databases, optimizing SQL queries and indexes to ensure database responsiveness.
-   Support secure, automated file transfers (SFTP/FTP) and interfaces between the hosted AS400 partition and downstream state, regional, or partner systems.
-   Cooperate with state database administrators and cloud architects to extract, clean, and archive legacy tables.
-   Document system flows, database schemas, and interdependencies to facilitate a seamless transition of legacy business logic to modern cloud systems.

## Apply

[Apply at Qode](https://apply.workable.com/qodeworld/j/352BC2E9BE/apply)

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