War Story: We Switched from Jenkins to CircleCI 10: 50% Faster Pipelines For three years, Jenkins was the backbone of our CI/CD pipeline. As a 50-engineer strong SaaS team building 12 microservices, we’d grown accustomed to its quirks—but by Q3 2023, those quirks had become critical blockers. Our average pipeline runtime had crept up to 45 minutes, flaky builds were wasting 15+ hours of developer time weekly, and maintaining our custom Groovy-based Jenkinsfiles required a dedicated DevOps engineer we jokingly called our "Jenkins Whisperer." The Breaking Point It all came to a head during our Q3 sprint: a critical hotfix for our payment service took 52 minutes to pass CI, delaying the rollout by two hours. That night, our CTO called an emergency post-mortem.…