Worked on enhancing backend reliability and configuration management across the axonivy-market/marketplace and axonivy-market/process-analyser repositories over a two-month period. Focused on Java and XML, the developer improved the Feedback API by introducing robust handling for missing users and feedback, ensuring the API returned appropriate responses instead of runtime exceptions. In the process-analyser repository, addressed project configuration issues by removing redundant resource definitions from Eclipse settings, which stabilized the build path and deployment process. These targeted bug fixes improved client experience, reduced CI failures, and established clearer traceability, demonstrating a methodical approach to backend development and configuration management challenges.