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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Developer - **Company:** Realign Llc - **Location:** Jersey City, NJ, United States - **Experience:** Expert - **Salary:** $123,936.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Unit Testing, Batch Files, Batch Processing, Customer Information Control System (CICS), COBOL (Programming Language), Code Review, IBM DB2, Software Debugging, Endevor, Job Control Language (JCL), IBM WebSphere MQ, Mainframes, Release Management, Software Engineering, SQL Stored Procedures, SQL Databases, Virtual Storage Access Methods, Database Optimization, Database Performance, Mainframe Programming, Integration Tests, Performance Monitor - **Published:** September 9, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=a45b37abf48b9c9f ## About the Role * 5-7 years of experience in Mainframe application development and support. * Strong hands-on experience in COBOL LE, DB2, JCL, CICS, VSAM, and Online/Batch programming. * Experience developing and supporting applications using MQ with CICS/COBOL and Batch/COBOL. * Strong background in IBM MQ and IBM WBE. * Strong experience with DB2 development, SQL programming, and database performance tuning. * Experience with DB2 Stored Procedures is a plus. * Strong skills in using File Manager and IBM Debug Tool. * Knowledge of change management tools such as ENDEVOR is desirable. * Knowledge of CICS analysis and performance tools such as TMON is desirable. * Knowledge of DB2 performance monitoring tools such as BMC MainView is desirable. * Strong analytical, troubleshooting, debugging, and problem-solving skills. * Excellent oral and written communication skills. * Experience in the Financial Services sector is desirable but not essential. ## Description * Design, develop, enhance, and maintain Mainframe applications using COBOL, DB2, JCL, CICS, VSAM, and MQ. * Develop and support both online and batch processing applications. * Implement application enhancements, fixes, and production changes following established development standards. * Perform impact analysis, coding, unit testing, integration testing, and deployment activities. * Develop and support MQ-based integrations using CICS/COBOL and Batch/COBOL. * Troubleshoot and resolve application, DB2, MQ, and CICS-related issues. * Perform root cause analysis and implement long-term solutions for production incidents. * Optimize application and database performance using available monitoring and performance analysis tools. * Work closely with business analysts, developers, testers, and support teams to deliver high-quality solutions. * Participate in code reviews, testing, release management, and production support activities. * Maintain technical documentation and ensure compliance with development standards and governance processes. * Participate in Agile ceremonies and contribute to continuous improvement initiatives. ## Related Videos - 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