AS400 / IBM i Application Developer

First Soft Solutions LLC

Oklahoma City (OK)

Hybrid

USD 83,000 - 124,000

Part time

14 days+

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Job summary

First Soft Solutions LLC is seeking an experienced AS400/IBMi Developer and Administrator for a long-term contract with Oklahoma City, OK. The role is part-time and hybrid, about 20 hours per week, focused on legacy systems, DB2 for i, and modernization support.

The candidate will develop in RPGLE/ILE RPG, CL, SQL, and manage IBM i administration, security, and job scheduling while coordinating with hosting providers and infrastructure teams.

Qualifications

Minimum 5 years of hands-on experience supporting and developing IBM AS400 / IBM i / iSeries environments.
Strong development with RPGLE, RPG IV/ILE RPG, CL, SQL, DB2 for i.
Experience with IBM i work management and job scheduling.
Experience with FTP/SFTP file transfers and system integrations.

Responsibilities

Maintain, troubleshoot, and enhance legacy AS400 applications.
Develop using RPG, RPG III/IV/ILE RPG, CL, SQL; manage DB2 for i databases.
Coordinate with hosting providers and infrastructure teams for environmental issues.
Support DB2 for i performance, backups, and disaster recovery activities.
Analyze production defects and coordinate resolution with teams.
Document architecture, interfaces, and data flows for modernization efforts.

Skills

IBM AS400 / IBM i / iSeries

RPGLE

RPG IV / ILE RPG

RPG III

Control Language (CL)

DB2 for i

SQL

QAUDJRN

IBM i Application Administration

IBM i Work Management

Subsystems

Job Queues

User Profiles

Object-Level Security

Batch Processing

Production Support

Legacy Application Modernization

Data Migration

Disaster Recovery

Managed / Hosted AS400 Environments

Job description

Role: Application Development AS400 Developer / Administrator

Client: Oklahoma Insurance Department (OID) / Office of Management and Enterprise Services (OMES)

Location: Oklahoma City, OK Hybrid

Schedule: Part-Time Approximately 20 hours per week

Duration: 12 Months

Experience Required: 5+ Years

Work Authorization: U.S. Citizen / Green Card / H-1B

Not Eligible: OPT / OPT EAD

Interview Process: Technical and Cultural Fit Interview Required

Position Overview

The Office of Management and Enterprise Services (OMES), in coordination with the Oklahoma Insurance Department (OID), is seeking an experienced AS400 / IBM i Developer and Application Administrator for a long-term contract engagement. This role will support OID's core IBM AS/400 / IBM iSeries environment, with responsibility for legacy application development and maintenance, DB2 database support, application-level system administration, integrations, production troubleshooting, and modernization activities. The ideal candidate will have strong hands-on experience with RPGLE, RPG IV/ILE RPG, Control Language (CL), DB2 for i, SQL, FTP/SFTP, and IBM i application administration. This individual will also serve as a key technical liaison between the agency, hosting providers, infrastructure teams, database administrators, and cloud modernization teams.

Key Responsibilities

Maintain, enhance, troubleshoot, and optimize legacy applications running within the IBM AS400 / IBM i environment.
Develop and maintain applications using:
- RPG
- RPG III
- RPG IV / ILE RPG
- RPGLE
- Control Language (CL)
- SQL
Analyze and resolve production defects, operational issues, batch-processing failures, and user-reported application problems.
Modify existing application logic to accommodate:
- Regulatory changes
- Licensing requirements
- Agency policy changes
- Business process enhancements
Perform code analysis, debugging, testing, and production support for existing AS400 applications.
IBM i Application Administration
- Provide application-level administration and operational support within the IBM i environment.
- Manage and support:
  - IBM i user profiles
  - Application security
  - Object-level authorities
  - Job queues
  - Active subsystems
  - Application job schedulers
- Review and verify IBM i system audit logs, including QAUDJRN, to help maintain system and application integrity.
- Troubleshoot application-related IBM i operational issues and coordinate resolution with infrastructure teams when necessary.

Hosting Provider & Infrastructure Coordination

Serve as a primary technical liaison between OID and its external AS400 hosting/managed-services providers.
Coordinate activities related to:
- IBM i operating system maintenance
- OS patching
- Database utilities
- Environmental changes
- Storage operations
- Backup activities
- Disaster recovery
- System restoration
Work closely with Ensono and other infrastructure/hosting teams to coordinate application backup windows and operational activities.
Participate in disaster recovery testing and verify successful application and data restoration.
DB2 for i Database Management
- Query, manage, troubleshoot, and optimize DB2 for i databases.
- Develop and execute SQL queries for application support, data analysis, troubleshooting, and integration.
- Analyze and optimize:
  - SQL queries
  - Database indexes
  - Database access patterns
  - Application/database performance
- Assist with legacy table maintenance, data extraction, cleanup, migration, and archival activities.
File Transfer & Systems Integration
- Develop and support secure file-transfer integrations using:
  - SFTP
  - FTP
- Support interfaces between the hosted AS400 environment and downstream:
  - State systems
  - Regional systems
  - Partner systems
  - Third-party applications
- Troubleshoot file-transfer failures and integration-related production issues.
- Support automation of recurring data exchanges and file-transfer processes.
Modernization & Migration Support
- Collaborate with state database administrators, application teams, and cloud architects on modernization initiatives.
- Assist with extracting, cleaning, transforming, and archiving legacy AS400 data.
- Analyze existing legacy applications and business logic to support migration to modern platforms and cloud environments.
- Document:
  - Application architecture
  - System workflows
  - Database schemas
  - Interfaces
  - Application dependencies
  - Business rules
  - Batch processes
  - Integration points
  - Help identify legacy system dependencies that must be addressed during application modernization and migration.

Required Qualifications

Minimum 5 years of hands-on experience supporting and developing applications within an IBM AS400 / IBM i / iSeries environment.
Strong hands-on development experience with:
- RPGLE
- RPG IV / ILE RPG
- Control Language (CL)
- SQL
- DB2 for i
Strong experience maintaining and supporting legacy AS400 applications.
Experience debugging RPG programs and troubleshooting production application issues.
Hands-on experience with DB2 for i database development, queries, and performance optimization.
Experience with IBM i work management, including:
- Subsystems
- Job queues
- Job scheduling
- User profiles
- Object authorities
- Application security
Experience supporting file transfers and system integrations using FTP and SFTP.
Experience working within a hosted or managed AS400 environment.
Ability to coordinate effectively with external hosting providers and infrastructure teams when resolving environmental or system-related issues.
Experience supporting backup, recovery, and disaster recovery activities.
Strong troubleshooting, analytical, and problem-solving capabilities.
Ability to document existing legacy applications, database structures, interfaces, and system dependencies.
Strong verbal and written communication skills.