COVU

Staff Backend Engineer – Twilio Platform

COVU

full-time

Posted on:

Origin:  • 🇺🇸 United States

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Job Level

Lead

Tech Stack

JavaScriptKafkaNode.jsPythonTypeScript

About the role

  • Design and implement Twilio-powered voice and messaging services (Voice, Programmable Messaging, Conversations, etc.)
  • Build intelligent call flows, custom routing engines, and agent-assist tools
  • Develop APIs and backend systems that support softphones, AI routing, and real-time context sharing
  • Integrate with third-party AI platforms (e.g., Deepgram, Whisper) via streaming and webhooks
  • Handle communication history, transcript storage, and PII-compliant data handling
  • Support multi-channel engagement (voice, webchat, SMS, WhatsApp) through unified APIs and event bus
  • Ensure observability, uptime, call quality, and scaling to support 100+ concurrent agents
  • Collaborate with frontend, AI, and product teams to co-design end-to-end agent workflows

Requirements

  • 8+ years of backend engineering experience, with strong system design fundamentals
  • Deep experience with Twilio APIs, real-time communications, and telephony infrastructure
  • Strong in TypeScript (Node.js) and Python for backend/API development
  • Experience with event-driven architectures, pub/sub (e.g., EventBridge, Kafka), and streaming
  • Familiar with security, compliance, and observability in real-time systems