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Contractual Ibm Rpg Programmer Jobs in Oklahoma (NOW HIRING)

HighCloud Solutions

AS400 Developer

Oklahoma City, OK · On-site

... IBM i Series) environment. Key Responsibilities 1. Legacy Application Maintenance & Support ... Maintain, modify, and optimize custom legacy application code written in RPG, RPG III, RPG IV (ILE ...

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I2U Systems, Inc.

AS400 Developer

Oklahoma City, OK · On-site

Minimum of five (5) years of hands-on experience in AS400 (IBM i, iSeries) application development and support. • Programming Skills: Exceptional proficiency in RPG IV (ILE RPG), RPGLE, CL, and SQL ...

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Contractual Ibm Rpg Programmer information

What is the difference between Contractual Ibm Rpg Programmer vs Contract Software Developer?

AspectContractual Ibm Rpg ProgrammerContract Software Developer
CredentialsTypically requires IBM RPG certification or experience with IBM i systemsRequires general programming certifications, such as Java, C#, or Python
Work EnvironmentPrimarily works on IBM i (AS/400) systems in enterprise settingsWorks on various platforms and languages, often in diverse industries
Employer & Industry UsageUsed mainly in industries with legacy IBM systems like banking, insurance, and manufacturingUsed across multiple industries including tech, finance, and healthcare

The Contractual Ibm Rpg Programmer specializes in legacy IBM i systems and RPG language, often working within specific industries. In contrast, the Contract Software Developer has a broader skill set across multiple platforms and languages, serving a wider range of industries. Both roles are contract-based but differ significantly in technical focus and work environment.

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Infographic showing various Contractual Ibm Rpg Programmer job openings in Oklahoma as of September 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 83% In-person, and 17% Remote job distribution.

IBM i (AS/400) RPG Developer/Administrator

Oklahoma City, OK • On-site

Quantam
51 - 200 employees
Learn more about Quantamexternal

Part-time

Medical, Retirement, PTO

Posted 2 days ago

New

Job description

Overview:
Quantam Solutions provides IT solutions and consulting for various clients. We offer competitive hourly wages, health benefits, paid time off, and a 401(k) plan. We are currently seeking a AS400 Developer/Administrator.
Position Details:
  • Duration: 12 months (high probability of extension)
  • Location: Oklahoma City, OK.
  • Work Schedule: Part-Time 20 hours per week (Hybrid)
  • Interview: Virtual, 1 round

Overview:
Our client is 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.
The underlying AS/400 hardware partition, operating system, and baseline infrastructure are fully hosted and managed by an external provider; this position does not require hardware or OS-level systems engineering. Instead, the contractor will focus on application development, software support, database management, and serving as the technical liaison to Ensono for environment-level modifications.
Responsibilities:
  • 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.

Qualifications:
  • 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 (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.

Nice-to-Haves:
  • 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.

Skills:
IBM iSeries,AS400 Administration,RPG IV,ILERPG,DB2,SQL,Legacy Application Support

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