Mainframe Developer

Key Responsibilities

• Design, develop, enhance, and maintain Mainframe applications using COBOL, CICS, DB2, JCL, and VSAM.
• Develop and modify COBOL programs based on business and technical requirements.
• Develop and maintain CICS online programs and transactions.
• Write, modify, and troubleshoot JCL for application execution and batch processing.
• Develop and optimize DB2 SQL queries, tables, and stored procedures as required.
• Work with VSAM files including KSDS, ESDS, and RRDS.
• Perform unit testing, integration testing, debugging, and defect resolution.
• Analyze production issues and provide timely fixes.
• Participate in requirement analysis, technical design, coding, testing, and deployment activities.
• Review code and ensure adherence to development standards and best practices.
• Collaborate with business analysts, technical teams, and other stakeholders.
• Prepare and maintain technical documentation for developed applications.

Required Skills

• COBOL Strong development experience.
• CICS – Hands-on experience with online transaction processing.
• JCL – Strong knowledge of batch job development and troubleshooting.
• DB2 – Good knowledge of SQL, queries, and database concepts.
• VSAM – Hands-on experience with VSAM file handling and processing.
• Strong knowledge of Mainframe development and SDLC processes.
• Experience in debugging, performance tuning, and production support.
• Good analytical and problem-solving skills.