Dolby.io is an API platform to enable easy integration of high-fidelity audio, video solutions into your real-time communications, media processing and streaming applications in browsers and mobile applications. In this talk we will walk through the challenges, learnings and approaches taken to enable testing the platform at scale. We will explore how we use a custom DSL together with known architecture patterns like the publish subscribe model to elevate our scale testing and analysis capabilities for video, audio and network parameters at scale