> Markdown version of [/jobs/ext/4029549-as-400-sr-developer](https://www.wearedevelopers.com/jobs/ext/4029549-as-400-sr-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # AS 400 Sr. Developer - **Company:** Nexturn Inc. - **Location:** Norristown, PA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Db2400, IBM System I, Unit Testing, Batch Processing, Business Software, Code Review, Software Debugging, Monitoring of Systems, IBM RPG (Programming Language), Job Scheduling, Connect-Direct (Internet Protocols Based Network Software), Software Engineering, SQL Stored Procedures, SQL Databases, File Transfer Protocol (FTP), Control Language, Information Technology, Code Migration - **Published:** October 30, 2026 - **Apply:** https://www.dice.com/job-detail/6a69c1aa-1123-4b00-a3bd-92ebfdcaeb55 ## About the Role * 10+ years of experience in IBM AS400 / iSeries development and maintenance. * Strong hands-on experience in RPG, RPGLE, CL, CLLE, ILE, and Free Format RPG. * Good knowledge of DB2/400, SQL/400, DDS, physical/logical files, and stored procedures. * Experience in incident management, problem management, and production support. * Familiarity with job scheduling, batch processing, and AS400 utilities. * Strong analytical, debugging, and problem-solving skills. * Ability to work independently and handle multiple priorities. Preferred Skills * Experience in code migration or modernization from fixed format to free format RPG. * Exposure to tools such as IBM Job Scheduler, ROBOT, and change management tools. * Knowledge of MQ, Connect Direct, SFTP, or interface integrations. * Experience in Agile/Scrum delivery environments. * Good communication and stakeholder management skills., * Bachelor's degree in Computer Science, Information Technology, or related field. * Minimum 10 years of relevant experience in AS400 development. ## Description We are looking for an experienced Sr. Developer - AS400 to join our technology team in Hyderabad. The ideal candidate will have strong hands-on experience in IBM i / AS400 application development, support, and maintenance, along with solid expertise in RPG, RPGLE, CL, DB2/400, and SQL/400. The role involves working on critical business applications, analysing requirements, developing solutions, and supporting production environments. Key Responsibilities * Design, develop, test, and maintain AS400 applications. * Analyze business requirements and convert them into technical specifications. * Develop and support programs using RPG, RPGLE, CL, CLLE, SQLRPGLE, and DB2/400. * Troubleshoot production issues and provide timely resolution. * Perform code reviews, unit testing, and defect fixes. * Work on enhancements, maintenance, and modernization initiatives. * Support batch jobs, job scheduling, and system monitoring. * Collaborate with business users, analysts, QA, and infrastructure teams. * Ensure adherence to coding standards, release processes, and best practices. * Prepare technical documentation and support knowledge transfer.