As400 Developer

Job description

**AS400 Developer** Job Summary We are seeking an experienced **AS400 Developer** to design, develop, maintain, and support business-critical applications on the IBM i (AS400) platform. The ideal candidate will have strong expertise in RPG programming, CL, DB2/400 databases, and IBM i system architecture. The role involves working closely with business users, analysts, and technical teams to deliver high-quality solutions that support enterprise operations. Key Responsibilities - Design, develop, test, and maintain applications on the IBM i (AS400) platform. - Develop and enhance programs using RPG III, RPG IV, RPGLE, Free-Format RPG, and CL. - Create and maintain database files, logical files, and queries using DB2/400. - Analyze business requirements and translate them into technical solutions. - Develop and support batch jobs, stored procedures, and interfaces with external systems. - Perform code reviews, debugging, troubleshooting, and performance tuning. - Create technical documentation, program specifications, and support manuals. - Support production environments and resolve application issues within defined SLAs. - Collaborate with cross-functional teams during system upgrades, migrations, and integrations. - Follow established software development lifecycle (SDLC) and change management processes. Required Qualifications - Bachelor's degree in Computer Science, Information Technology, or related field. - 3+ years of experience in AS400/IBM i application development. - Strong experience in: - RPG III - RPG IV / RPGLE - Free-Format RPG - CL Programming - Experience with DB2/400 database design and development. - Knowledge of SQL, Embedded SQL, and Query/400. - Strong debugging and problem-solving skills. - Experience with source control and change management tools. Preferred Qualifications - Experience with ILE concepts and service programs. - Knowledge of IBM i system administration fundamentals. - Experience integrating AS400 applications with web services or APIs. - Familiarity with modern IBM i development tools such as: - Rational Developer for i (RDi) - IBM ACS (Access Client Solutions) - Experience in Manufacturing, Banking, Insurance, Retail, or Supply Chain domains. - Exposure to modernization projects involving IBM i systems. Technical Skills Programming Languages - RPG III - RPG IV - RPGLE - Free-Format RPG - CL/CLLE Database Technologies - DB2/400 - SQL - Embedded SQL - Query/400 IBM i Technologies - IBM i (AS400) - ILE - Service Programs - Job Scheduling - Subfiles - Journaling Tools - RDi (Rational Developer for i) - IBM Access Client Solutions (ACS) - TurnOver / Aldon (preferred) - Git (preferred) Soft Skills - Strong analytical and troubleshooting abilities. - Excellent communication and documentation skills. - Ability to work independently and within a team environment. - Strong attention to detail and commitment to quality. - Ability to manage multiple priorities in a fast-paced environment. Preferred Certifications - IBM Certified Application Developer IBM i - IBM Certified System Administrator IBM i - IBM Professional Certifications related to IBM Power Systems Sample Professional Headline **AS400 Developer | IBM i Specialist | RPGLE | Free-Format RPG | CL Programming | DB2/400 | SQL | Application Support & Modernization**