Staff Software Engineer, Voice AI jobs in United States
cer-icon
Apply on Employer Site
company-logo

Nooks · 2 months ago

Staff Software Engineer, Voice AI

positionSan Francisco
timeFull-time
remoteOnsite
senioritySenior Level, Lead/Staff
money$250K/yr - $325K/yr
date6+ years exp

Nooks is an AI Sales Assistant Platform that automates the busywork for sales representatives, enhancing their ability to generate sales pipeline. The Staff Software Engineer for Voice AI will own backend infrastructure for real-time audio/video calling, ensuring high call quality and developing advanced features.

Artificial Intelligence (AI)Information TechnologyProductivity ToolsSales Automation
check
H1B Sponsor Likelynote

Responsibilities

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
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

Qualification

WebRTCSIPTwilioDistributed systemsLow-latency infrastructureDebugging QoSReal-time A/V systemsBackend engineering

Required

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)

Benefits

Equity in the form of options
Comprehensive health, dental, vision, life and disability insurance coverage
Hybrid work
Unlimited paid time off

Company

Nooks

twittertwitter
company-logo
Nooks is an applied AI lab that powers modern sales teams.
dateFounded in 2020
location
San Francisco, California, USA
people-size51-200 employees
web-link
https://www.nooks.ai/

H1B Sponsorship

Nooks has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (10)
2024 (2)
2023 (1)

Funding

Current Stage
Growth Stage
Total Funding
$70M
Key Investors
Kleiner PerkinsLachy GroomTola Capital
2024-10-22Series B· $43M
2024-04-24Series A· $22M
2021-07-14Seed· $5M

Leadership Team

leader-logo
Daniel Lee
Co-Founder, CEO
linkedin

Recent News

MarketScreener
Twilio Unveils the 20 Honorees of its Third Annual AI Startup Searchlight Awards
2025-11-19
Crunchbase News
Job-Related Startup Funding Points To More AI Screening And More ‘Gigification’ Of Work
2025-09-03
SalesTech Star
Clari Reaffirms Commitment to Open Ecosystem to Expand Enterprise Revenue Data and Inform AI Agents
2025-07-10
Company data provided by crunchbase