Kayathiri Kayanesan focused on backend improvements to identity infrastructure, addressing reliability issues in the wso2-extensions/identity-inbound-auth-oauth and identity-governance repositories. She enhanced the device authorization flow by introducing an OAuthRequestWrapper in Java, ensuring request attributes were preserved during device code grant processing and reducing the risk of parameter loss. In parallel, she refined password recovery logic by updating the recovery code generation process, so codes are only created when necessary in question-based flows. Leveraging Java, the Java Servlet API, and OAuth, her work improved backend maintainability and user experience, demonstrating a thoughtful approach to targeted bug resolution and system robustness.