Uber’s Global Anonymous Communications System

Uber is a global marketplace for transportation supply and demand. To ensure user’s safety, we assure phone numbers are anonymized between rider and driver in as many countries as we can. We’ll talk about Uber's implementation of a global anonymous communications system; our original implementation, a recent re-write and the tradeoffs; and we’ll include how we handle provider failure, how we do datacenter failover, and how we handle multiple phone numbers for merchants and recipients.