Worked on the Azure/kwok repository to enhance the reliability of duration handling in Kubernetes pod annotations by expanding test coverage for duration-related features. Developed and integrated a dedicated unit test for the DurationFrom function within the expression utility package, ensuring accurate parsing and returning of custom duration values from annotations. Employed Go and test-driven development practices to strengthen code quality and reduce runtime risk associated with annotation-driven durations. Focused on improving the safety and stability of deployments by verifying edge cases in duration parsing, demonstrating a quality-focused engineering approach centered on robust testing and maintainability within the Go ecosystem.