Worked on the kyma-project/serverless repository to enhance Git reference handling by enabling support for both commit SHAs and git tags within gitRepository.reference. Leveraged Go and regex to implement validation logic that accurately distinguishes between commit hashes, branches, and tags, reducing the risk of misconfiguration. Optimized the repository cloning process to improve performance and resource efficiency in serverless workflows. Developed comprehensive unit tests to cover various reference scenarios, ensuring regression safety and robust automation. These improvements contributed to more precise dependency pinning, streamlined CI/CD pipelines, and increased reliability in serverless feature delivery, reflecting a strong focus on backend engineering practices.