AS/400 IBM Developer

Qode•Oklahoma, OK

9d•Hybrid

About The Position

This is a part-time, long-term contract engagement for an AS400 Developer/Admin. 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 5 years of hands-on experience in AS400 application development and support, with exceptional proficiency in RPG IV (ILE RPG), RPGLE, CL, and SQL on DB2 for i. Prior experience working in a hosted/managed AS400 environment and collaborating with external hosting providers is necessary. The role also involves proven experience in IBM i work management, subsystem coordination, application security, user profile management, and strong background in file transfer automation (FTP, SFTP) and managing external integrations.

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.
Must be local to Oklahoma City, OK.
Must be a USC or GC.

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.