Seeking a Lead Mainframe Developer with 11+ years of experience in Mainframe. Enterprise Cobol JCL and DB2 to lead and manage mainframe application development support and L2 production support activities Extensive experience in Mainframe Enterprise Cobol programming and debugging. Proficient in writing and managing Job Control Language JCL scripts for batch processing. Strong knowledge of Mainframe DB2 database including SQL query optimization and database management. Familiarity with IBM zOS o