During April 2026, contributed to the dotnet/android repository by enhancing the Android publishing pipeline’s reliability through backend development and build automation using C# and Xamarin. Focused on resolving intermittent directory removal failures that affected dotnet publish on both Windows and Unix, the work introduced a cross-platform retry mechanism for the RemoveDirFixed task. This approach mapped platform-specific errors like ERROR_DIR_NOT_EMPTY and ENOTEMPTY into the retry logic, preserving existing retry semantics and minimizing risk of regressions. The changes reduced build flakiness in CI, improved release reliability, and included thorough documentation and traceability, aligning with broader goals for cross-platform maintainability.