Full-Time
Member of Technical Staff
Frontend
Posted on 10/31/2025
Vapi
51-200 employees
Platform for building voice AI agents
Compensation Overview
$200k - $265k/yr
San Francisco, CA, USA
Hybrid
 Software Engineering (1) |
|---|
- Must be a frontend engineer capable of shipping a lot of features.
- 30 Day: Master the real-time assistant configuration system.
- 60 Day: Architect end-to-end features such as multi-modal voice interfaces.
- 90 Day: Design components, APIs and UX patterns that scale across teams.
- Experience at startups that have reached Series B to F rounds.
- Built beautiful products that are admired.
- Bonus: Have built your own startup.
Vapi provides an infrastructure platform to build and deploy enterprise-grade voice AI agents. Developers use flexible APIs and an SDK to create, test, and deploy voice agents for inbound and outbound calls, using a mix of STT, LLMs, and TTS from integrated or third-party providers to deliver low-latency conversations. Clients can bring their own API keys or use Vapi's models, giving control over cost and performance across industries like healthcare, finance, and travel, from startups to Fortune 500s. The goal is to simplify building scalable voice operations and enable rapid deployment of AI-powered call workflows, with a usage-based pricing model per minute plus telephony and AI costs, differentiating itself through a developer-centric approach and provider-agnostic orchestration.
Company Size
51-200
Company Stage
Series A
Total Funding
$20.1M
Headquarters
San Francisco, California
Founded
2021
Simplify's Take
What believers are saying
- Enterprise adoption across healthcare, finance, travel with Fortune 500 customers.
- $20M Series A at $130M valuation enables rapid infrastructure scaling.
- Global language coverage and real-time audio streaming expand addressable market.
What critics are saying
- OpenAI Direct Voice API commoditizes voice infrastructure, reducing Vapi's orchestration value.
- Retell AI's sub-400ms latency and end-to-end model ownership erodes developer preference.
- EU AI Act fines up to 7% revenue for high-risk healthcare deployments lacking deterministic outputs.
What makes Vapi unique
- Sub-500ms response times with flexible STT/LLM/TTS provider selection.
- HIPAA and SOC-2 compliance with LLM guardrails for regulated sectors.
- Production-grade features: tool calling, A/B testing, voicemail detection, AI testing.
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Benefits
Company Equity
401(k) Company Match
Company News
Vapi, which helps businesses deploy AI-powered voice agents, raised a $20M Series A from Bessemer, Y Combinator, and others, a source says at a $130M valuation (Kritika lamba/reuters).
Vapi, a developer platform for deploying Voice AI agents, has raised $20 million in Series A funding.
Helping enterprises over this challenge, Vapi, a leading developer platform for deploying Voice AI agents, announced today that it 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.
Voice AI for developers. Founded in 2020 by Jordan Dearsley and Nikhil Gupta, Vapi has 2 employees based in San Francisco, CA, USA. Vapi is hiring for 2 roles in engineering.