Worked on the konflux-ci/release-service-catalog repository to stabilize Docker image signing and enhance test coverage for Docker image handling workflows. Addressed a bug in the rh-sign-image task by refining Docker manifest processing, ensuring correct handling and signing of multi-architecture and index images. Improved the reliability of the release process by updating test infrastructure, expanding mock skopeo responses to provide detailed JSON manifests, and increasing multi-component test coverage. Leveraged skills in CI/CD, containerization, and DevOps, utilizing Shell and YAML to implement robust testing and automation. These efforts reduced release risk and enabled faster triage of issues in image management.