AS400 Developer/Admin

The Office of Management and Enterprise Services (OMES), in coordination with the Oklahoma Insurance Department (OID), is seeking an experienced AS400 Developer/Admin for a long‑term contract engagement. Duration: 1 year with extension. Location: Oklahoma City, OK (Hybrid). Hours: 20 hours per week. Candidates must be local to Oklahoma City or willing to relocate for on‑site days at OID or OMES facilities.

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.

Required Skills

• 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.
• Experience working in a hosted/managed AS400 environment and collaborating with external hosting providers (e.g., 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.

Highly Valued Skills

• 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.