AS/400 IBM Developer

Qode•Oklahoma City, OK

10d•$50 - $60•Hybrid

About The Position

This is a part-time AS400 Developer/Admin position for a long-term contract engagement with the State of Oklahoma. The role is critical for providing essential application maintenance, database management, and application-level administration services for OID’s core IBM AS/400 (IBM i Series) environment. The position requires a resource who can collaborate with external hosting providers to resolve infrastructure or environmental issues and manage application-level security and user profiles.

Requirements

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.