Worked on the delta-rs repository to improve the reliability of merge operations by addressing a bug in session state management. Focused on backend development using Rust, the work involved ensuring that the SessionStateBuilder correctly utilized the provided session state and supported initialization from existing states, rather than defaulting to new ones. Additionally, code cleanup was performed by removing an unnecessary underscore from the state argument, enhancing readability and aligning with established conventions. These changes reduced context drift during merges, increased maintainability, and streamlined debugging, demonstrating skills in Rust, code refactoring, and backend state management within a core data infrastructure project.