Mainframe Developer

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

Cobol
IBM - JCL - Job Control Language
DB2
IBM - CICS
IBM - IMS DB/DC

Skills

• Cobol
• Mainframe Developer
• IBM
• DB2