Senior Software Engineer, Voice AI

Location

San Francisco

Full time

Hybrid

Engineering

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.

For more information, visit Nooks.ai (Use the "Apply for this Job" box below)..ai

Own backend infrastructure for real-time audio/video calling (Twilio, Sales floor, A/V quality, recordings, transcriptions) to deliver a dialer that scales reliably to 10× volume.

What you’ll do:

• 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.

We’re looking for someone who has:

• 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).

Nooks is an equal opportunity employer committed to fostering a diverse and inclusive workforce. We believe in providing equal employment opportunities to all individuals regardless of race, color, religion, gender, gender identity, sexual orientation, national origin, age, disability, veteran status, or any other characteristic protected by law.

Nooks does not discriminate in hiring, promotion, compensation, or any other employment practices, and we are committed to ensuring a workplace that is free from discrimination, harassment, and retaliation. We encourage individuals from all backgrounds to apply and join our team.