Real-time semantic search for Conversational AI
We built Moss because Voice AI breaks when retrieval is slow. Most retrieval infrastructure was not built for real-time reasoning. It adds latency, breaks context mid-conversation, and becomes the bottleneck just as an AI product needs to feel instant.
Moss is the real-time semantic search layer for conversational AI. We deliver sub-10ms retrieval directly in the browser, at the edge, on-device, or in the cloud, without making teams stitch together a slow retrieval stack.
We are backed by YC and run in production for teams building serious AI products. Moss is deployed across 100+ countries, serves 5M+ of real-time voice minutes, supports enterprises serving 3000+ of their own end customers, and has 380K+ package installs.
The SDKs are how every one of those developers meets Moss. They are the first thing a team touches, the surface that has to feel instant on every platform, and the layer where our Rust engine becomes real code running inside someone else's product.
We are looking for a Senior or Staff SDK Engineer to own how Moss ships across every developer surface: JavaScript/TypeScript, Python, Swift, Android, Elixir, C, and the Rust core they all bind to.