Harness CI Enterprise (CIE) optimizes the continuous integration process by implementing a caching strategy that significantly reduces build times and conserves network bandwidth, particularly for UI builds. This strategy leverages Kubernetes for building infrastructure, allowing for efficient execution of build jobs in containers, and integrates smoothly with continuous deployment processes. Harness CIE's caching mechanism stores data in services like Amazon S3 or GCS, reducing redundant downloads of node modules, which can lead to substantial time savings, as demonstrated by a reduction from over five minutes to just one minute and 25 seconds in execution time in a test scenario. The platform provides a user-friendly interface with options for building directly from the UI or using a YAML editor, and it supports features like Test Intelligence to minimize test times. By utilizing these features, Harness aims to streamline development workflows, enhance pipeline performance, and reduce resource consumption, offering a robust alternative to other CI tools like Jenkins.