Worked on the corda-runtime-os repository to enhance codebase maintainability and test reliability. Focused on Kotlin development, the work involved a comprehensive code cleanup and refactoring of imports and constants, aligning the project with detekt standards and standard library usage. This improved code consistency and reduced technical debt, making future development and onboarding more efficient. Additionally, addressed a bug in the integration test for the Warning header case, ensuring accurate validation and reducing the risk of flaky tests. The approach emphasized integration testing and code quality, supporting long-term maintainability while preserving existing runtime behavior and compatibility within the project.