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Staff Software Engineer, Voice AI

United States, San Francisco 250000.00 - 325000.00 USD / Year · Job Posted February 18, 2026
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Job Description

Nooks is the AI Sales Assistant Platform (ASAP) that automates the busywork so reps can focus on the human part of selling and generate more sales pipeline. Nooks has helped thousands of sales reps hit quota, saved customers hundreds of thousands of hours, and powered hundreds of millions of dollars in pipeline. Nooks is loved by sales teams at companies like Hubspot, Rippling, and hundreds more.

Job Responsibility

  • Architect and improve real-time voice infra (WebRTC/SIP/Twilio)
  • Ensure call quality and latency meet SLA targets globally
  • Build services for advanced features (call transfers, monitoring, recordings)
  • Develop observability and debugging tools for call flows
  • Partner with Product/Support to enable new A/V features and fast issue resolution
  • Own backend infrastructure for real-time audio/video calling (Twilio, Salesfloor, A/V quality, recordings, transcriptions) to deliver a dialer that scales reliably to 10× volume

Requirements

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

What we offer

  • equity
  • comprehensive health, dental, vision, life and disability insurance coverage
  • hybrid work
  • unlimited paid time off

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