Job Description

Mainframe Developer

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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