Member of Technical Staff, Frontend

Vapi (/ˈVɑːpi/): Voice AI that resolves, not transfers Powering 1 billion calls for companies like Amazon Ring, Intuit, ServiceTitan, and New York Life Trusted by 1 million developers building the future of voice agents Backed by Peak XV, Bessemer, Kleiner Perkins, M12, Y Combinator, and more with $72M raised Try talking to Vapi now! Why We’re Hiring This Role: We’re hiring a senior frontend engineer in San Francisco to raise the quality of the experiences customers use to build and operate voice AI agents. This role will shape frontend experiences across call health and LLM observability, reporting, and analytics - a broad product surface with significant room for ownership. You’ll shape data-heavy dashboards and call logs used by thousands of monthly active users, making complex, real-time workflows fast, accessible, and trustworthy. What You’ll Do: 30 Days: Ramp up on Vapi’s frontend stack and Agent Loop/Observe. Build context with engineering, product, and design, learn how dashboards and call logs connect to backend services, and ship a meaningful improvement. 60 Days: Take end-to-end ownership of a core workflow in call health/LLM observability or reporting and analytics. Deliver production React, TypeScript, and Tailwind work with strong API integration, testing, and measurable improvements to performance, accessibility, or usability. 90 Days: Become the primary frontend owner for your area. Establish reusable patterns in the design system and Storybook, improve how data-intensive and real-time interfaces scale, and help the team use agentic coding without compromising craft. Who You Are: 5+ years of professional software engineering experience with deep frontend expertise and a record of shipping customer-facing products. Strong command of React, TypeScript, JavaScript, HTML, CSS, browser APIs, and integrating frontend applications with backend services and APIs. Strong web performance and accessibility fundamentals, including tools such as Chrome DevTools and Lighthouse. A test-driven approach spanning component, visual, and end-to-end testing, plus experience with Storybook and design systems. Excellent product and UX judgment and strong collaboration with product and design in fast-moving environments. Production experience with agentic coding tools and Tailwind CSS. Data-intensive dashboards, complex tables, pagination across millions of rows, or real-time interfaces are a plus. How We Work: Build something worthy of love Craft matters. We aim to build products and experiences customers genuinely love, not just tolerate. Commit and follow through We finish what we start and build trust by being people others can count on. Why not today? We value urgency and momentum. The fastest path to customer value usually wins. Seek raw input We go directly to customers, data, and teammates instead of relying on summaries or assumptions. It’s our problem We operate as one team. We share credit, own mistakes together, and support each other when things get hard. Be direct and kind We give feedback clearly, respectfully, and without delay. Why Vapi: Generational impact : Build the human interface for every business Ownership culture : Many of us are previous founders Kind team : The founders, Jordan and Nikhil, are Canadians Tier-1 Investors : YC, KP seed, Bessemer What We Offer: Real stake : We offer a competitive salary and excellent equity ownership Comprehensive health coverage : medical, dental, and vision plans Team love : We love hanging out, and we do quarterly off-sites Flexible time off : take what you need More : catered meals, transportation, equipment, and a $10k annual L&D budget