Case study
Platform engineering · Jenkins to GitHub Actions
Impact
Build times cut by 55%, zero flaky deploys
Led the migration of a legacy Jenkins-based CI/CD setup to a modern GitHub Actions pipeline, reducing build times, eliminating flaky tests, and giving developers confidence in the deployment process.
The team had inherited a Jenkins setup that nobody fully understood, where builds would randomly fail and deploys required a senior engineer to babysit. Migrating it was partly a technical challenge and partly a trust-rebuilding exercise.
Platform engineering, CI/CD design, developer experience
Replacing a working (if fragile) CI system without disrupting ongoing development, while building something the whole team could understand and maintain.
Audited the existing Jenkins pipelines and identified the real failure modes — mostly implicit environment dependencies and shared mutable state.
Designed GitHub Actions workflows around isolated, declarative steps with explicit dependencies and artifact caching.
Migrated services incrementally with parallel runs, so the team could validate the new pipeline before committing to it.
Build times reduced by 55%. Flaky deploys eliminated. Developers now ship to production multiple times a day without a babysitter.
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