Mainframe Developer

Responsibilities

• Design, develop, and maintain mainframe applications using COBOL (and/or PL/I), JCL, and related technologies.
• Develop and support batch processing jobs (job streams, scheduling coordination, restarts, abend handling).
• Build and maintain online applications using CICS and/or IMS TM, including transaction and screen/program changes.
• Develop and optimize data access using DB2 (SQL) and/or IMS DB; perform basic performance tuning as needed.
• Conduct impact analysis, estimate effort, and deliver enhancements/defect fixes through the SDLC (Software Development Life Cycle).
• Create and maintain technical documentation (program specs, job flows, runbooks, release notes).
• Collaborate with cross-functional teams (business, QA, operations, infrastructure) to ensure stable releases and successful deployments.
• Follow secure coding practices and comply with audit, access control, and data handling requirements.

Requirements

• Hands-on experience with IBM z/OS mainframe development.
• Strong proficiency in COBOL (or PL/I).
• Strong proficiency in JCL and batch job processing concepts.
• Working experience with DB2 (SQL development and data handling) and/or IMS.
• Experience with ISPF/TSO and ability to navigate datasets, job logs, and execution outputs.
• Debugging and troubleshooting skills (including abend analysis).
• Understanding of SDLC practices, testing, and release/change processes.
• Strong communication and documentation skills.

Key Skills

• Cobol
• IBM JCL (Job Control Language)
• IBM - CICS
• IBM - IMS DB/DC