Worked on the JetBrains/Exposed repository to enhance Spring transaction management by ensuring that ExposedSQLException reliably triggers transaction rollbacks when integrated with SpringTransactionManager. Addressed the EXPOSED-593 issue by introducing the ExposedSpringTransactionAttributeSource bean, which improves the mapping of transaction attributes within Spring-managed environments. Expanded the test suite to validate rollback behavior for ExposedSQLException, RuntimeException, and other exceptions, thereby strengthening transaction integrity. Utilized Java and Kotlin alongside Spring Boot to implement these changes, focusing on robust exception handling and database transaction management. The work improved the reliability of Spring integration and addressed a critical bug affecting transactional consistency.