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Vapi

Backend Product Engineer

Vapi, San Francisco, California, United States, 94199

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Overview

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Backend Product Engineer

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Vapi . Vapi is the most configurable platform for building voice agents. Our platform equips companies with everything they need—telephony, real‑time streaming, deterministic fallbacks, HIPAA/SOC2 compliance, and an AI testing suite—to launch production‑grade voice agents fast. In just 18 months, more than 300,000 developers have signed up, with over 1,500 new developers joining every day. Our mission is to make voice humanity’s default interface again by capturing nuance, emotion, and context that text alone misses.

What You’ll Do

Design and implement backend services in Node.js/TypeScript (experience with Go or Python a plus) Build APIs and infrastructure powering real-time voice interactions Drive improvements in system performance, scalability, and reliability Collaborate with frontend engineers to deliver seamless end-to-end product features Elevate security, compliance, and observability across backend systems

Who You Are

Strong backend fundamentals, with experience in distributed systems, APIs, and cloud infrastructure 3+ years of backend engineering, with at least 1 year at a startup Proven track record shipping complex features to production at scale Comfortable balancing speed with rigor in system design and security Self-starter who thrives in dynamic, fast-moving environments

Why Vapi

Define the future of human–AI interaction: help pioneer a new era of voice-based AI products Own meaningful work at a breakout startup: join early and have a direct hand in building a category-defining company Work with a world-class team of engineers, operators, and builders backed by top-tier investors Accelerate your career in a high-growth environment and take on big challenges

What We Offer

Competitive compensation with strong base salary and meaningful equity Comprehensive health coverage: medical, dental, and vision Flexible time off with an emphasis on rest and balance Daily meals on in-office days Lifestyle & wellness stipends to support rent, transportation, food, fitness, and mental well-being Professional development: annual learning stipends for courses, conferences, and upskilling Team connection: regular offsites and opportunities to build in-person relationships

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