Worked on the JetBrains/Avalonia repository to deliver a targeted fix for the Windows OS timer interval calculation within the dispatcher, addressing a bug that previously caused timer drift and unstable UI behavior on Windows platforms. The solution involved refining the timer update logic in C#, leveraging skills in dispatcher implementation and Windows development to ensure accurate and reliable timer behavior. By correcting this edge case, the work improved UI responsiveness and contributed to the overall stability of Avalonia’s cross-platform timer system. This focused engineering effort enhanced production readiness for Windows users without introducing new features, emphasizing depth in platform-specific problem solving.