AS/400 Developer responsible for designing, developing, maintaining, and supporting enterprise applications on the IBM i (AS/400) platform. Works closely with business users, analysts, and technical teams to deliver scalable and reliable solutions using RPG, CLLE, DB2/400, and SQL technologies.

Key Responsibilities

- Develop, maintain, and enhance applications on IBM AS/400 (IBM i) systems.
- Analyze business requirements and translate them into technical specifications.
- Design, code, test, and implement RPGLE, CLLE, and SQL-based applications.
- Create and maintain DB2/400 database files, logical files, and SQL objects.
- Develop and support batch jobs, reports, interfaces, and online applications.
- Debug and resolve production issues while ensuring minimal business disruption.
- Perform code reviews, unit testing, and system integration testing.
- Optimize program performance and database queries.
- Collaborate with cross-functional teams to support business processes.
- Prepare technical documentation and provide ongoing application support.




- Participate in system upgrades, migrations, and modernization initiatives.
- Integrate AS/400 applications with external systems, APIs, and web services.

Required Skills
- Strong experience in RPG IV, RPGLE, Free-Format RPG, and CLLE.
- Proficiency in DB2/400, Embedded SQL, and SQL Programming.
- Experience with DDS, Physical Files (PF), Logical Files (LF), Display Files, and Printer Files.
- Knowledge of IBM i operating system and ILE concepts.
- Familiarity with debugging, performance tuning, and job scheduling.
- Experience with change management and source control tools.
- Solid analytical, problem-solving, and communication skills.

Preferred Skills
- Experience with Web Services, REST APIs, and API integration.
- Knowledge of IBM ACS, Rational Developer for i (RDi), and Query/400.
- Exposure to modernization projects and cloud integration.
- Understanding of Agile and SDLC methodologies

📌 As400 Developer (Canada)
🏢 Stellar Consulting Solutions
📍 Canada