Over 3+ years of progressive experience in development and Production Support of complex Mainframe applications in insurance domain.Proven ability to improve Mainframe Performance, Security having extensive experience on Mainframe application development using TSO/ISPF, COBOL, JCL, VSAM, DB2, IMS DB. Supported multiple Enterprise Mainframe applications of medium to high complexity with multiple concurrent users, ensuring control, integrity, and accessibility by effectively utilising JCL, DB2, COBOL, VSAM, IMS DB. Extensive experience in Developing & supporting Mainframe Applications using (JCL, COBOL, DB2, IMS DB, VSAM, TSO/ISPF). Strong experience in DB2 application like cursor, SQL query optimization, Cursor using pointer functionality.Major role on Handling Prod job failures efficiently by utilising JCL, DB2, VSAM,COBOL, IMS DB, and working on incidents and resolving Prod abends of mainframes.