From 25–30 Minutes to Under 4: How 12th Wonder Optimized CI/CD Builds

Over 12 months, our engineering team optimized an existing CI/CD pipeline to reduce average build time from 25–30 minutes to under 4 minutes, an improvement of more than 85%. This internal case study takes you through the optimization journey, including pipeline tuning, incremental builds, dependency caching, workspace reuse, parallel execution and artifact optimization. The improvements were achieved without additional infrastructure investment, while reducing developer wait times and enabling faster validation and release cycles.