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Role overview

This position is for a Mainframe Developer with strong practical experience in IBM z/OS application development and support. The role involves working across batch and online mainframe programs, database interactions, job control, and production issue resolution.

Key responsibilities

Build and support IBM z/OS mainframe applications with strong hands-on expertise.
Work confidently with COBOL for batch and/or online processing, including VSAM and file handling.
Create and maintain JCL, job flows, scheduling steps, restart and recovery logic, and core utilities such as SORT, IDCAMS, and IEBGENER.
Handle database work in DB2, including SQL, bind/package activities, and basic performance tuning, or work with IMS-DB concepts such as DL/I, PSB, and PCB.
Develop and support online transaction processing in CICS, including BMS, COMMAREA, channels/containers, and syncpoints, or in IMS-DC.
Investigate defects and production incidents using dumps, ABEND codes, JES spool/output, and application logs.
Understand SDLC practices, release and change management, and proper documentation methods; experience in Agile delivery is an added advantage.
Communicate effectively with business users and technical teams, prepare impact analysis, and contribute to knowledge transfer activities.

Eligibility

Any graduate can apply.

Additional information

This role is with Tata Consultancy Services Ltd. The job location is Mumbai, India.

Required technical knowledge

IBM z/OS mainframe application development and support
COBOL
VSAM and file handling
JCL and job scheduling
SORT, IDCAMS, IEBGENER utilities
DB2 or IMS-DB
SQL, bind/package handling, and DB2 performance basics
CICS or IMS-DC
Dumps, ABEND analysis, JES output, and application log troubleshooting
SDLC, release/change processes, and documentation
Agile delivery exposure
Stakeholder communication and impact analysis

Mainframe Developer

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