Haystack
← Back to Jobs
Technology

Sr. Developer - AS400

Maintec Technologies IncKing of Prussia, PA🇺🇸United StatesPosted 28 Jul 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Role: Sr. Developer - AS400 

Location: King of Prussia PA
Experience: 8+ years 

Any  

Role Summary 

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, analyzing 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. 

Required Skills 

·        8+ 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. 

Qualifications 

·        Bachelor’s degree in Computer Science, Information Technology, or related field. 

    • Minimum 8 years of relevant experience in AS400 development

Skills

SQL
Scrum
Agile
Stakeholder Management

Similar jobs