Mainframe Developer

Job Summary: We are seeking a Mainframe Developer to develop, enhance, and support mission-critical applications on IBM z/OS. This role includes batch and/or online transaction processing, database work (DB2/IMS), testing, and production support. 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). Perform debugging, root‑cause analysis, and resolution of production issues; participate in on‑call/support rotations as required. 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 Technical Key Skills: COBOL IBM JCL (Job Control Language). DB2.

IBM - CICS

IBM - IMS DB/DC.

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