AS400 Engineer

Senior AS400 Engineer

• Design, develop, test, and maintain RPG-based applications on IBM i platforms.
• Lead enhancements and bug-fixes in Supply Chan Systems (SDS), with deep understanding of order fulfillment, purchase order processing and transportation operations.
• Develop and integrate Web Services, JSON, and Web API
• Translate business requirements into high-quality, scalable, secure, and maintainable code.
• Work collaboratively with Product Owners, QA, and multiple application and infrastructure teams to deliver end-to-end Supply Chain business solutions.
• Conduct root cause analysis and performance tuning of the applications.
• Modernize legacy RPG code (e.g., RPG III to RPG IV/ILE/Free Format) where necessary ensuring high performance and reliability.
• Analysing and debugging the existing RPG codes and create documentation based on the same for modernisation purpose.
• Create and maintain technical documentation, including code reviews and release notes.
• Comply with Change Management, PCI, PII, SOX policies and best practices.
• Provide technical mentorship to junior developers.

Requirements

• 5+ years of RPG development experience.
• Strong hands-on with IBM i (AS/400, iSeries).
• Proficiency in CL, DDS, DB2/400, and service programs.
• Strong performance tuning and troubleshooting skills.
• Experience integrating RPG with external systems via APIs/JSON.
• Strong knowledge of supply chain processes.