Contributed to the momentohq/client-sdk-javascript and momentohq/public-dev-docs repositories by delivering targeted improvements in both SDK resilience and documentation quality. Enhanced the Node.js SDK’s retry logic by refining the eligibility policy for gRPC status codes and request types, adding new retryable operations, and explicitly marking non-retryable cases to improve error handling and system reliability. In parallel, expanded the Leaderboards API documentation to support Java, updating API references and example code while removing outdated authentication files to streamline developer onboarding. Work demonstrated depth in Node.js, Java, TypeScript, and SDK development, with a focus on maintainability and developer experience.