Software Engineer, Voice AI Infrastructure

Nooks • San Francisco, CA

82d

About The Position

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 Toast, and hundreds more. 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 infrastructure.
• Experience debugging and optimizing QoS (latency, jitter, packet loss).

Responsibilities

• Architect and improve real-time voice infrastructure (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.

What This Job Offers

• Career Level: Senior
• Number of Employees: 51-100 employees