How have you implemented end-to-end CI/CD pipelines in your previous roles? Which tools have you used?

I've implemented end-to-end CI/CD pipelines using tools like Jenkins, GitLab CI/CD, and AWS CodePipeline. These pipelines automated code integration, testing, and deployment stages. By employing version control systems and automated testing suites, we ensured that only quality code was promoted to production, reducing manual errors and accelerating the release cycles.