During October 2025, Mohamad Raja focused on improving the reliability of integration tests in the snowflakedb/snowflake-jdbc repository. He addressed a critical issue in the construction of OAuth scopes within the JDBC integration tests, ensuring that the correct role is used when generating OAuth access tokens. By aligning the test logic with production behavior, Mohamad enhanced both test accuracy and authorization correctness, which reduced false negatives and improved CI stability. His work involved deep understanding of Java, JDBC, and OAuth, and demonstrated careful attention to integration testing practices, ultimately resulting in more robust and maintainable test environments for the project.