Vapi AI | Software Engineer (Senior) | System Design | Phone Screen

We are designing a system that can accept calls from customers and route them to workers that run the call process (AI text generation, TTS/STT, etc) Clients call a Twilio number which sends a POST request to our API and we respond with a websocket URL. Twilio then connects to the websocket URL which directs them to a proxy which will route the call to one of several call workers. We want to ensure there are enough r...