Senior Mainframe Developer

Infosys; Bengaluru; On-site; INR 1,200,000 - 2,200,000; Full time

Job summary

Infosys in Bengaluru seeks a Senior Mainframe Developer to design, develop and maintain core applications using COBOL, JCL and CICS. You will own end-to-end delivery from requirements to release, with a focus on reliability and performance.

The role requires 3–5 years of hands-on Mainframe experience, strong debugging skills, and the ability to collaborate with QA, operations and business teams to ensure smooth production support.

Qualifications

• Bachelor’s or Master’s degree in BTECH, BCA, MCA, or MTECH.
• 3–5 years of hands-on Mainframe development experience.
• Strong COBOL and JCL development experience with CICS knowledge.
• Proficient in debugging, abend analysis, and performance tuning.
• Ability to collaborate with QA, operations and business teams.

Responsibilities

• Design, develop, and enhance Mainframe applications using COBOL aligned to requirements.
• Create and maintain JCL for batch processing, scheduling readiness, and reliable job execution.
• Develop, modify, and support online components using CICS as needed.
• Perform unit testing, debug defects, and ensure code quality through reviews.

Skills

Mainframe development

COBOL

JCL

CICS

Batch processing

Education

B.Tech / BCA / MCA / MTech

Tools

COBOL

JCL

CICS

Job description

Mainframe Senior Developer Technology->Mainframe Technologies->Mainframe Technologies

ALL Preferred Qualifications:

• Experience handling end-to-end delivery: requirement understanding, development, unit testing, and release support.
• Strong debugging skills for batch and online flows, including abend analysis and performance improvements.
• Exposure to structured development practices such as code reviews, documentation standards, and change management.
• Ability to collaborate effectively with QA, operations, and business teams to ensure smooth delivery and production stability.
• Proven track record of improving reliability or efficiency of batch cycles and CICS transactions in production environments.

Key Responsibilities

Application Development & Enhancements

• Design, develop, and enhance Mainframe applications using COBOL aligned to functional and technical requirements.
• Create and maintain JCL for batch processing, scheduling readiness, and reliable job execution.
• Develop, modify, and support online components using CICS as required by application flows.
• Perform unit testing, debug defects, and ensure code quality through structured reviews and standards compliance.

Production Support & Stability

• Analyze and resolve incidents, batch failures, and abends; perform root-cause analysis and implement preventive fixes.
• Monitor and tune batch performance, improving efficiency and reliability of critical processing cycles.
• Collaborate with QA and release teams to support deployments, validations, and post-release verification.

Documentation & Collaboration

• Maintain clear technical documentation for programs, job streams, and operational procedures.
• Work closely with cross-functional stakeholders to clarify requirements, estimate effort, and deliver on timelines.

Minimum Qualifications

• Bachelor’s or Master’s degree in BTECH, BCA, MCA, or MTECH (or equivalent).
• 3-5 years of hands-on experience as a Mainframe developer.
• Strong development experience with Mainframe technologies including COBOL and JCL.
• Working knowledge of CICS for online transaction processing and support.
• Ability to troubleshoot issues, interpret logs/outputs, and deliver stable fixes with attention to detail.