Worked on backend development and code cleanup for the aixplain/aiXplain repository, focusing on improving code quality and reliability over a two-month period. Addressed three bugs by refining Python modules, including a targeted cleanup of the Enums module to enhance maintainability without affecting functionality. Improved the model factory by ensuring correct connection type handling, which reduced runtime errors and clarified object instantiation logic. Simplified authentication schema error handling in integration workflows, removing unreachable code and clarifying error paths. Emphasized maintainable, testable code by triggering functional tests with each change, demonstrating a methodical approach to backend stability and long-term code health.