Staff Backend Engineer

Reposted 3 Days Ago
San Francisco, CA
In-Office
150K-300K Annually
Senior level
Artificial Intelligence • Software
The Role
The Senior Backend Engineer will manage end-to-end feature deployment, optimize systems, solve customer issues, and contribute to company culture.
Summary Generated by Built In
Vapi (/ˈwɑːpi/):
  • We’re creating the shift to voice as humanity’s default interface.

  • We’re the most configurable platform for deploying voice agents.

  • We’re grown to 400,000 developers in 20 months, adding 2,000+ every day.

  • Try talking to Vapi now!

Why We’re Hiring This Role:
  • We get a feature request every 30 min.

  • We’re hiring a cracked backend engineer to ship a ton more stuff.

What You’ll Do:
  • 30 Day: You’ll ramp on our voice agent pipeline. It’s hard and fun.

  • 60 Day: You’ll own end-to-end large projects like WhatsApp voice agents or auto RL loop.

  • 90 Day: You’ll talk to customers and design APIs that last a century and delight them.

Who You Are:
  • You’ve seen Series B to F.

  • You’ve built beautiful products that we admire.

  • Bonus: You’ve built your own startup.

Why Vapi:
  • Generational impact: Build human interface for every business.

  • Ownership culture: 90% of company is previous founders.

  • Kind team: The founders Jordan and Nikhil are Canadians.

  • Tier-1 Investors: YC, KP seed, Bessemer series A.

What We Offer:
  • Real stake: We offer competitive salary and excellent equity ownership.

  • Comprehensive health coverage: medical, dental, and vision plans.

  • Team love: We love hanging out and do quarterly offsites.

  • Flexible time off: take what you need.

  • More: catered meals and transportation, gym & coaching stipends!

Top Skills

Node.js
Typescript
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The Company
HQ: San Francisco, California
48 Employees
Year Founded: 2021

What We Do

Vapi lets enterprises deploy human-like voice agents in minutes. Whether you’re building a voice product or trying to handle millions of calls, Vapi’s reliable infrastructure and flexible APIs make it easy.

Everyone from YC startups to Fortune 500 companies rely on Vapi because it is:
Flexible: Plug in your APIs, your customer data, your models
Scalable: Handle millions of calls with <500ms latency
Secure: LLM guardrails, HIPAA, SOC-2

Helping enterprises over this challenge, Vapi, has raised $20 million in Series A funding, led by Bessemer Venture Partners with participation from Abstract Ventures, AI Grant, Y Combinator, Saga Ventures, and Michael Ovitz.

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