Mainframe Developer

Weekday AI; Bengaluru; On-site; INR 1,000,000 - 1,500,000; Full time

Job summary

Weekday is seeking a Mainframe Developer for a client in Bengaluru, Karnataka. You will design, develop, and maintain high-performance mainframe applications, write COBOL, develop JCL, and manage DB2 interactions while ensuring reliable messaging with MQ and NDM.

You\'ll collaborate with BAs, QA, and other developers, perform testing, document coding standards, and mentor junior developers, contributing to scalable and compliant solutions.

Qualifications

• 4+ years of hands-on mainframe development with COBOL.
• Strong knowledge of JCL, MQ, and NDM middleware technologies.
• Proficient in DB2 SQL tuning and performance optimization.
• Familiarity with release management and CI/CD for mainframe.
• Excellent problem-solving and troubleshooting skills.
• Experience in Agile/Scrum development.
• Strong documentation and coding-standards adherence.

Responsibilities

• Design, develop, and customize COBOL programs for business processes.
• Write and optimize JCL scripts for batch and online workload execution.
• Implement and manage IBM MQ and NDM to ensure reliable messaging and integration.
• Create, modify, and tune DB2 SQL statements and database objects for performance.
• Conduct unit, integration, and regression testing to validate functionality.
• Analyze production incidents and provide rapid root‑cause analysis and resolution.
• Collaborate with Business Analysts, QA, and other developers to gather requirements.
• Maintain comprehensive technical documentation and coding standards.
• Participate in code reviews and peer‑review activities to uphold quality.
• Mentor junior developers and share best practices for mainframe development.

Skills

COBOL

JCL

MQ

NDM

DB2

SQL tuning

CI/CD for mainframe

Agile/Scrum

Troubleshooting

Documentation

Tools

IBM MQ

NDM

DB2

Job description

This role is for one of the Weekday's clients.

Salary range: Rs 1000000 - Rs 1500000 (ie INR 10-15 LPA)

Experience: 4+ yrs

Location: Bengaluru, Karnataka, India, Hyderabad

As a Mainframe Developer, you will be responsible for designing, developing, and maintaining high-performance mainframe applications that support critical enterprise processes. Your role will involve writing efficient COBOL code, crafting JCL scripts, and managing database interactions with DB2, while ensuring smooth message flow through MQ and NDM middleware. You will collaborate with cross‑functional teams to gather requirements, troubleshoot production issues, and implement robust solutions that improve system reliability and scalability. Consistent documentation and adherence to coding standards will be essential to maintain code quality and support future enhancements. Secure, maintainable, and compliant solutions will be the hallmark of your contributions to the organization.

Key Responsibilities

• Design, develop, and customize COBOL programs for business processes.
• Write and optimize JCL scripts for batch and online workload execution.
• Implement and manage IBM MQ and NDM to ensure reliable messaging and integration.
• Create, modify, and tune DB2 SQL statements and database objects for performance.
• Conduct unit, integration, and regression testing to validate functionality.
• Analyze production incidents and provide rapid root‑cause analysis and resolution.
• Collaborate with Business Analysts, QA, and other developers to gather requirements.
• Maintain comprehensive technical documentation and coding standards.
• Participate in code reviews and peer‑review activities to uphold quality.
• Mentor junior developers and share best practices for mainframe development.

What Makes You a Great Fit

• 4+ years of hands‑on experience in mainframe development with COBOL.
• Strong knowledge of JCL, MQ, and NDM middleware technologies.
• Proficient in DB2 design, SQL tuning, and performance optimization.
• Familiarity with modern release management and CI/CD practices for mainframe.
• Ability to translate business requirements into efficient, reusable code.
• Excellent problem‑solving skills and a proactive approach to troubleshooting.
• Solid documentation habits and adherence to coding standards.
• Experience working in Agile/Scrum development cycles.
• Strong communication skills, capable of collaborating across teams.
• Passion for continuous learning and staying current with evolving mainframe tools.