Worked on stability and robustness improvements in Unity-Technologies repositories, focusing on C# programming, editor scripting, and shader development. Addressed a validation issue in the Graphics repository’s ShaderGraph by implementing case-insensitive file extension checks for custom function nodes, ensuring consistent behavior across platforms and reducing build failures. In the InputSystem repository, contributed a defensive fix to prevent NullReferenceException by adding validation checks, which improved error handling and runtime reliability for input processing. These targeted bug fixes enhanced maintainability and developer productivity, demonstrating a methodical approach to software debugging and error handling within complex, cross-platform Unity systems over a two-month period.