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CI/CD Pipeline Overhaul: Faster Builds, Zero Flakes
Migrated our CI to a matrix-build strategy with intelligent caching. Build times dropped 40% and flaky test failures are nearly eliminated.
Published June 26, 2026 at 4:36 AM
What changed
Replaced our monolithic GitHub Actions workflow with a parallelized matrix build that splits tests by runtime characteristics. Added a shared BuildKit cache layer for Docker layers, cutting image rebuilds from 8 minutes to under 90 seconds. Also introduced a retry-and-quarantine mechanism for historically flaky integration tests — failures now get isolated instead of blocking the entire pipeline.
Skills & Tools
GitHub ActionsDockerBuildKitNode.jsJest