AS400 Developer / Admin
Duration - 12-Month Initial Assignment (with high probability of extension)
Hours: 20 hours per week
Position Overview
We are seeking an experienced AS400 Developer/Admin to provide application maintenance, database management, and application-level administration for an IBM AS/400 (IBM i Series) environment.
The role will focus on application development, software support, database management, and coordination with the hosted environment team for infrastructure-level modifications. The resource will also support database extraction, documentation of legacy business logic, cloud migration, and data archiving initiatives.
Key Responsibilities Legacy Application Maintenance & Support
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Maintain, modify, and optimize legacy applications developed using RPG, RPG III, RPG IV (ILE RPG), RPGLE, and Control Language (CL).
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Troubleshoot application bugs, batch processing issues, and user-reported system problems.
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Modify existing application logic based on business and regulatory requirements.
Application Administration
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Coordinate with hosting providers regarding system maintenance, database utilities, patching schedules, and environmental changes.
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Manage application-level security, including user profiles and object-level authorities.
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Review system audit logs and maintain application security.
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Manage job queues, active subsystems, and application-level job scheduling.
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Coordinate backup, disaster recovery, and restoration activities.
DB2 Database & Integration Management
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Query, manage, and tune DB2 for i databases.
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Optimize SQL queries and indexes for database performance.
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Support automated FTP/SFTP file transfers and integrations with external systems.
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Troubleshoot and maintain application interfaces.
Modernization & Migration
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Assist with extracting, cleaning, and archiving legacy database tables.
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Document application flows, database schemas, and system dependencies.
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Support legacy application modernization and cloud migration initiatives.
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Work with database administrators and cloud teams on migration activities.
Required Skills & Qualifications
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5+ years of hands-on experience with AS400 / IBM i / iSeries application development and support.
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Strong proficiency in RPG IV / ILE RPG, RPGLE, RPG, and CL/CLLE.
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Strong SQL and DB2 for i experience.
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Experience with IBM i application administration and support.
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Experience with job queues, subsystems, scheduling, application security, and user profile management.
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Experience with FTP/SFTP
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