Worked on backend reliability improvements for the alex000kim/skypilot repository, focusing on Slurm task execution. Addressed a correctness issue by updating the rclone flush path to preserve the exit code of user commands, ensuring that failed jobs are no longer incorrectly reported as succeeded. This change improved the accuracy of job status reporting and enhanced the traceability of job outcomes within SkyPilot’s Slurm integration. The solution was implemented using Python and involved careful backend development and testing to reinforce end-to-end correctness in batch job workflows, contributing to more reliable and transparent monitoring of distributed job execution environments.