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Staff Software Engineer, Voice AI

NooksSan Francisco
On-site Full Time

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Qualifications

6-10+ years of experience in backend or infrastructure engineering with a focus on real-time audio/video or telephony systems. Strong hands-on experience with WebRTC, SIP, Twilio, or similar technologies. Solid understanding of distributed systems and low-latency infrastructure. Proven ability to debug and optimize Quality of Service (QoS) including latency, jitter, and packet loss.

About the job

About Nooks.ai:

Nooks is revolutionizing the sales landscape with our AI Sales Assistant Platform (ASAP), designed to eliminate mundane tasks and empower sales representatives to prioritize meaningful customer interactions. Our technology has enabled thousands of sales professionals to exceed their quotas, saved clients countless hours, and generated hundreds of millions of dollars in sales pipeline. Nooks is trusted by sales teams from leading companies such as Hubspot, Rippling, and Toast, as well as many others.

As a high-performing team, we have successfully secured over $70M in funding from prestigious venture capital firms, including Kleiner Perkins, which marked its first investment in sales technology in over a decade by choosing Nooks. Over the last two years, we've achieved remarkable growth, quadrupling our annual recurring revenue (ARR) and then tripling it again, with plans to do so once more this year.

To learn more about us, visit Nooks.ai.

In this role, you will take ownership of our backend infrastructure for real-time audio and video calling (including Twilio, Salesfloor, A/V quality, recordings, and transcriptions), ensuring our dialer can scale reliably to handle 10x the current volume.

Your Key Responsibilities:

  • Architect and enhance our real-time voice infrastructure (WebRTC/SIP/Twilio).

  • Guarantee that call quality and latency consistently meet SLA targets on a global scale.

  • Develop services for advanced functionalities such as call transfers, monitoring, and recordings.

  • Create observability and debugging tools to optimize call flows.

  • Collaborate with Product and Support teams to implement new A/V features and ensure rapid issue resolution.

Ideal Candidate Profile:

  • 6 to 10+ years of experience in backend or infrastructure engineering, particularly with real-time audio/video or telephony systems.

  • Proven hands-on experience with technologies such as WebRTC, SIP, Twilio, or similar platforms.

  • Strong understanding of distributed systems and low-latency infrastructure.

  • Experience in debugging and optimizing Quality of Service (QoS) metrics including latency, jitter, and packet loss.

At Nooks, our compensation package for eligible roles includes a base salary, equity options, and comprehensive benefits. The base salary is just one part of the total compensation, which may also encompass equity, health, dental, vision, life and disability insurance, hybrid work arrangements, and unlimited paid time off. Please note that benefits are subject to change and may vary based on the employment jurisdiction.

About Nooks

Nooks is at the forefront of transforming sales processes with our innovative AI Sales Assistant Platform (ASAP). By automating repetitive tasks, we empower sales professionals to focus on building relationships and closing deals. Trusted by top companies such as Hubspot and Toast, we have achieved significant growth backed by leading venture capital firms. Our mission is to enable sales teams to work smarter, not harder, and we are committed to continuous innovation in the sales tech space.

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