Worked on backend reliability improvements for Minecraft server plugins, focusing on EssentialsX/Essentials and PaperMC/Paper repositories. Addressed two critical bugs by refining command handling logic in Java, specifically preventing ClassCastException in the /helpop command when executed from the console and ensuring /balance operates correctly for vanished players. Enhanced the user experience for server operators by clarifying the reload command’s usage message in Paper, reducing confusion around unsupported commands. Demonstrated skills in Java, backend development, and robust command handling, with an emphasis on edge-case resilience and cross-repository collaboration. The work contributed to improved maintainability and reduced support overhead for server administrators.