Added - ago Application Developer​/AS400 Developer​/Admin; PT) Oklahoma Oklahoma

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We are seeking a part-time AS400 Developer/Admin in Oklahoma City, OK.

Application Developer / AS400 Developer/Admin (PT)

Location &

Schedule:

Oklahoma City/Hybrid Remote M-F 20 hrs. a week. Candidates must be local to Oklahoma City or willing to relocate.

Seeking an experienced, high-caliber 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.

• Legacy Application Maintenance & Support. 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.
• Application Administration & Infrastructure Liaison. 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.
• DB2 Database & Integration Management. 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.
• Modernization & Migration Enablement. 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.

Experience:

Minimum of five (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 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).

• Direct experience assisting in legacy-to-cloud migrations or data warehousing extractions.
• Familiarity with modern IBM i tools, such as Rational Developer for i (RDi).
• Prior experience working in public sector environments or supporting insurance regulatory systems.

• Work on a highly innovative team with cutting-edge technology.
• Great opportunity to make a big impact and take ownership of…