Developed and integrated TeamCity CI/CD functionality for the tramlinehq/tramline repository, focusing on automating build management and enhancing release reliability. The work included implementing API endpoints to list configurations, trigger or cancel builds, and poll for build artifacts, all within a Ruby on Rails environment. Optional Cloudflare Zero Trust support was added to secure connections to the TeamCity server, improving the security posture of the CI/CD pipeline. By combining API development, CI/CD integration, and Cloudflare technologies, this contribution established a foundation for automated releases and streamlined build processes, addressing both operational efficiency and security for the tramline project.