Mainframe Developer

Job DescriptionRequired Skills: COBOL, JCL, VSAM, DB2, CICS, MainframeResponsibilities:·Developed and maintained COBOL batch and online programs to support core business processes, ensuring accurate transaction processing and system reliability.·Created and modified JCL jobs for batch scheduling, file processing, program execution, and production support across mainframe environments.·Designed, coded, and optimized DB2 queries, stored procedures, and embedded SQL within COBOL programs for efficient data retrieval, validation, and updates.·Worked with VSAM files for high-volume data storage, retrieval, and batch processing, including file definition, access path handling, and record-level updates.·Developed and enhanced CICS online screens and transaction programs to support real-time user interactions and business operations in a high-availability environment.·Performed end-to-end analysis, coding, testing, and debugging of COBOL, CICS, DB2, and VSAM applications to resolve defects and improve application performance.·Integrated COBOL programs with DB2 databases and VSAM datasets to support seamless batch and online processing of customer, policy, account, or transaction data.·Prepared and executed JCL for production deployments, batch job monitoring, restart/recovery handling, and troubleshooting of job abends and performance issues.·Collaborated with business analysts, testers, and support teams to gather requirements, implement enhancements, and ensure smooth delivery of mainframe application changes.·Supported system maintenance activities including impact analysis, code migration, production incident resolution, and documentation for COBOL, JCL, DB2, VSAM, and CICS components.