The Mainframe DB2 System DBA will be responsible for installing, upgrading, maintaining, and customizing DB2 and its associated IBM and third-party software. The role involves monitoring the DB2 on z/OS environment, creating, modifying, and maintaining the DB2 databases on the z/OS environment, and providing technical system support for DB2 subsystems, database tools, and utilities. Additionally, the DBA will support DB2 business, end-user, and application requirements.