Developed the SDKMAN Version Badge Service for the badges/shields repository, enabling dynamic retrieval and display of SDK version information through robust API integration and backend development in JavaScript. Focused on reliability, the implementation included comprehensive error handling to map invalid responses, such as 400 errors, to clear “not found” states, reducing support friction and preventing misleading failures. Migrated test coverage from mocked services to live-service tests, ensuring greater accuracy and resilience in production environments. The work emphasized thorough validation and functional testing, leveraging skills in backend development and automated testing to deliver a maintainable, user-facing feature with improved reliability.