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Slope

Founding Senior Engineer (Backend)

Slope, San Francisco, California, United States, 94199


Founding Senior Engineer (Backend) at Vapi (W21)

$100K - $220K



0.20% - 0.70%

Voice AI for developers.

San Francisco, CA, US

Full-time

3+ years

Apply now

About Vapi

Voice AI for developers About the role

Skills:

JavaScript, Kubernetes, Node.js, Rust, TypeScript

Company Overview

Apple Intelligence and Google Gemini are about to onboard 4 billion people to voice assistants that actually talk like people. This marks a new beginning for voice as the world’s default interface. We will

all

want voice

everywhere . Businesses are not ready. Products are not ready. We’re building the infrastructure that helps developers close the gap between the raw model and voice AI in production.

Give it a try here

. We

launched in March , scaled revenue, and raised this past week. We’re a small team of 6 and growing. We're building out the founding team in-person in SF to scale what’s working. Mission

The Senior Engineer (Backend) will own features end-to-end from customer requests to their deployment, building on a modular API-first architecture, working within real-time low-latency constraints. You’ll also be a foundational part of how we build the culture at Vapi. Outcomes

Own and deliver entire features + projects

Ship a pre-scoped feature within the first 7 days Ship a feature independently within the first 30 days

Ship optimizations and refactors

Ship a pre-scoped optimization or refactor within the first 14 days

Ex. improve the latency of a component of the speech-to-speech pipeline

Ship an optimization independently within the first 30 days

Ex. refactor a tool-calling mechanism to make it more deterministic

Talk to customers

Receive a request from Support team and ship the fix within the first 14 days Pick up customer threads unprompted, investigate and solve within the first 14 days

Build things that delight customers

Unprompted, delight a customer within the first 30 days (ex. call analytics endpoint)

Competencies

Experience with Typescript + Node or similar backend framework Communication: You can clearly articulate what you’re thinking

and

feeling Cracked-ness: You’re more cracked than the most cracked person on the team Startup Ready: You have a reason to be here and can make sacrifices for something uncertain Founder Juice: New ideas come from you, you build it yourself or annoy everyone until it’s done ;) Qualifications

Previous Founding/Senior/Staff/Principal Engineer 1+ years of experience at company

5+ years experience in Full-Stack / Backend Software Engineering Apply now #J-18808-Ljbffr