Worked on the Particular/NServiceBus.Transport.AzureServiceBus and Particular/NServiceBus.TransactionalSession repositories, focusing on code clarity, reliability, and robust exception handling using C#. Delivered a targeted refactor to improve code readability by renaming variables for clearer distinction between native and application-level message identifiers, ensuring maintainability without altering runtime behavior. Addressed reliability in session management by fixing flaky tests and introducing validation to prevent invalid CommitDelayIncrement values, enhancing test determinism and error handling. Emphasized software quality assurance through comprehensive unit and acceptance testing, applying C# programming and refactoring skills to strengthen both codebase clarity and the reliability of transactional session features.