Martin Briatka modernized CI/CD pipelines across six SAP COP repositories, including registry-credential-injector-cop and cert-manager-cop, by upgrading GitHub Actions checkout workflows to version 5. He focused exclusively on YAML-based configuration, leveraging his expertise in CI/CD and GitHub Actions to standardize build, test, publish, and release processes without altering application code. This cross-repository upgrade improved pipeline stability, security, and reliability, reducing maintenance overhead and pipeline flakiness. By ensuring all workflows used the latest reusable checkout action, Martin enabled teams to achieve faster, more consistent releases. His work demonstrated depth in automation and configuration management within complex engineering environments.