Harness CI significantly enhances Gradle build times by utilizing Build Intelligence, resulting in builds that are nearly six times faster than those conducted on GitHub Actions, thus improving developer productivity and resource efficiency. The blog post highlights how complex software projects often encounter slow build times as a bottleneck, impacting resource usage and development cycles. Harness CI optimizes Gradle build performance through features like Build Intelligence, Test Intelligence, and Cache Intelligence, which effectively reuse build artifacts, execute only relevant tests, and efficiently cache dependencies. The Spring Framework serves as a case study, demonstrating the benefits of these optimizations for large Java projects. Dewan Ahmed, the author, a Principal Developer Advocate at Harness, brings extensive experience from his previous roles at IBM, Red Hat, and Aiven, and is passionate about open-source and advocating for underrepresented groups in tech.