During February 2025, Roy contributed to the mongodb/node-mongodb-native repository by addressing a critical issue affecting the reliability of write operations under timeout conditions. He refactored the handling of write concern timeouts, migrating from WriteConcernSettings to WriteConcernOptions to ensure correct interaction between timeouts and write concerns. This change resolved a regression and improved the stability of backend operations. Roy also expanded integration test coverage, validating write behavior both with and without timeouts to prevent future regressions. His work demonstrated depth in backend development and testing, utilizing JavaScript, TypeScript, and MongoDB to enhance the correctness and maintainability of the codebase.