Worked on stabilizing NPU profiling workflows in the yhyang201/sglang repository by addressing issues introduced by experimental profiler configuration changes. Focused on restoring reliable profiler behavior for NPU workloads, the developer reverted recent modifications that had impacted profiling stability, thereby minimizing risk and preserving developer productivity. The solution involved a targeted bug fix, implemented through a specific commit, which rolled back the problematic settings without introducing new features. Leveraging skills in Python development, machine learning, and profiling, the work ensured that profiling on NPU devices remained consistent and dependable, supporting ongoing development and analysis efforts within the codebase.