JOB ROLE/TASKS: System Administrator 1. Troubleshooting Analyse job logs and system messages. Use system tools (**WRKACTJOB**, **WRKSTN**) for performance issues. Resolve hardware errors and disk/memory/CPU problems. 2. PTF Application Apply PTFs to fix bugs and improve performance. Use commands like **WRKPTFGRP**, **GO PTF** to check and apply PTFs. Solve PTF conflicts or application issues. 3. System Updates & Maintenance Apply **Cumulative PTFs** to keep the system up-to-date. Schedule PTF updates during off-peak hours. 4. Job Management Troubleshoot failed jobs using **WRKJOB**. Clear job queues and restart jobs as needed. 5. Database & File Issues Fix issues with **DB2 for IBM i** and corrupted files. Use **SQL queries** to resolve database problems. 6. User Support Communicate with users to understand and fix issues. Document problems and solutions clearly.