Voice Architecture Evolution - How Twilio Scaled Programmable Voice

Twilio’s Programmable Voice product started out with three guys and two monolithic code bases. Today, there are 50 different services in the Voice stack alone. This talk is about: the challenges of evolving the voice architecture while avoiding downtime, how to successfully refactor architecture without losing functionality or stability, how the breakdown of the monolith enabled us to scale the team and enable faster feature development, and the technology we built to do this.