At Pinterest, we focused Q1 2021 working on reducing the p95 time for Android builds. We were able to bring the time down by 30%. In this talk, I’ll share our learnings from our experience in improving the build times. This was mostly done in a big monolithic app, but several of these tips are also applicable to a modularized app Key Takeaways: Make sure your app is using the right gradle settings Build cache is pretty sensitive.Things like having empty folders, changes in resources, having non deterministic method order can affect them Use a tool for build debugging such as Gradle Enterprise Optimize usage of incremental build cache, local cache and remote cache