Worked on reliability and stability improvements across backend and compiler projects, focusing on targeted bug fixes. In the opentelemetry-collector-contrib repository, addressed resource leaks by ensuring the FluentForward receiver properly closed all established connections during shutdown, using Go and comprehensive unit and integration testing to validate clean shutdown behavior. In the microsoft/typespec repository, resolved a formatter crash that occurred when handling empty operation parameter lists with dangling comments, preserving comment integrity and preventing runtime errors. This fix involved TypeScript and compiler design skills, with thorough test coverage to ensure consistent formatting. The work emphasized robust, maintainable solutions and careful validation.