Required Skills/Experience: Must also have 24 months of experience with each of the following: (1) developing, enhancing, and optimizing COBOL, JCL, DB2, CICS, REXX, and related mainframe components, including performance tuning of longrunning SQLs using DB2 Insight; (2) performing Mainframe development, supporting the functional and user acceptance testing (UAT) during the testing phase; (3) incorporating Agile best practices, developing KPIs used by leadership and business teams to determine risk assessments, code coverage, test case coverage, and defect metrics, as well as enhancing overall quality of the release by minimizing delivery timeframe; (4) providing production support and rootcause analysis, resolving critical issues, implementing permanent fixes, and supporting enterprise releases, patches, and hotfixes; and (5) supporting system testing, integration testing, and full UAT cycles, preparing test scenarios, traceability matrices, and resolving all defects identified during validation. (6) performing Mainframe development, supporting the functional and user acceptance testing (UAT) during the testing phase; (7) developing, enhancing, and optimizing COBOL, JCL, DB2, CICS, REXX, and related mainframe components, including performance tuning of longrunning SQLs using DB2 Insight; (8) incorporating Agile best practices, developing KPIs used by leadership and business teams to determine risk assessments, code coverage, test case coverage, and defect metrics, as well as enhancing overall quality of the release by minimizing delivery timeframe; (9) providing production support and rootcause analysis, resolving critical issues, implementing permanent fixes, and supporting enterprise releases, patches, and hotfixes; and (10) supporting system testing, integration testing, and full UAT cycles, preparing test scenarios, traceability matrices, and resolving all defects identified during validation.