WORKER SKILLS AND QUALIFICATIONS Design, develop, and write code as needed to modify mainframe systems or extract data for review prior to moving it into the new application infrastructure or Informatica staging database.Research and review complex and disparate sources to document currently functioning code to enable movement of business applications off the mainframe.Meeting with the business, vendor staff, and the information technology team to understand the existing applications, and the required changes needed as each application is wholly or partially moved during multiple releases off the mainframe.Participate in requirements gathering or review sessionsCreate technical design documents and specificationsDevelop programs in COBOL, or update JCL as neededPerform unit and system testingSupport the users in acceptance testingWork with the IT team to move the system into productionCreate necessary system documentationProvide after-hour support for nightly batch Mainframe schedule COBOL and JCL programs