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

📌 Engineer Tamil Nadu
🏢 RandomTrees
📍 Tamil Nadu