Demo

Staff Backend Engineer

Vapi
San Francisco, CA Full Time
POSTED ON 11/29/2025
AVAILABLE BEFORE 6/3/2026
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!

Salary.com Estimation for Staff Backend Engineer in San Francisco, CA
$144,447 to $173,636
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Job openings at Vapi

  • Vapi San Francisco, CA
  • 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 g... more
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  • Vapi San Francisco, CA
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  • Vapi San Francisco, CA
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  • 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 g... more
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