Uber RAMEN: The Architecture Behind Instant Ride Matching at Massive Scale

Uber's RAMEN system tackles a fundamental problem in distributed systems: delivering real-time data to millions of devices without overwhelming the backend. By maintaining persistent gRPC connections instead of relying on inefficient polling, RAMEN achieves sub-100ms latency while slashing server resource consumption and device battery drain. This pattern is becoming the de facto standard for high-scale real-time applications like ride-sharing.