Thomas Berey delivered a key security feature for the Crown-Commercial-Service/ccs-scale-agreements-service repository by externalizing database credentials from the application’s YAML configuration. He removed hard-coded usernames and passwords from application.yml, enabling the service to securely source credentials from environment variables. This approach improved the security posture of the deployment pipeline and reduced the risk of credential leakage across multiple environments. Thomas applied his skills in configuration management and database security, leveraging YAML for application configuration. While the work focused on a single feature, it addressed a critical compliance requirement and laid the groundwork for safer, more flexible deployment and release processes.