5h ago

Senior Software Engineer, Voice AI

San Francisco

$215k-$280k / year

full-timesenior Hybridsoftware

🛠 Tech Stack

💼 About This Role

You'll own backend infrastructure for real-time audio/video calling, architecting WebRTC/SIP/Twilio systems to deliver a dialer that scales reliably to 10× volume. You'll ensure call quality and latency meet SLA targets globally while building observability tools and partnering with Product to enable new A/V features.

🎯 What You'll Do

  • Architect and improve real-time voice infrastructure using WebRTC/SIP/Twilio.
  • Ensure call quality and latency meet SLA targets globally.
  • Build services for advanced features like call transfers and recordings.
  • Develop observability and debugging tools for call flows.

📋 Requirements

  • 6–10+ years backend/infra engineering with real-time A/V or telephony systems.
  • Hands-on experience with WebRTC, SIP, or Twilio stacks.
  • Strong foundation in distributed systems and low-latency infrastructure.
  • Experience debugging and optimizing QoS metrics (latency, jitter, packet loss).

🎁 Benefits & Perks

  • 🏖️ Unlimited PTO
  • 📈 Equity in the form of options
  • 🏥 Comprehensive health, dental, vision, life and disability insurance
  • 🏢 Hybrid work model
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