Full Stack Engineer

Senior Founding Full-Stack Engineer About the Company Our client is a rapidly scaling, YC-backed Voice AI company. With $5M in seed funding and over $60M in annual recurring revenue — generated by a team of just 30 — they're setting the benchmark for voice automation at scale. The Role As a Senior Founding Full-Stack Engineer, you'll help build the platform behind millions of AI-powered voice conversations. You'll work across React, TypeScript, and Node.js to develop high-performance systems and polished interfaces that drive seamless customer experiences. What You'll Do Build and ship core product features — prompt orchestration, dashboards, analytics, and telephony integrations Work across the full stack, from clean, responsive UIs to scalable APIs and DevOps pipelines Take full ownership of projects from system design through production deployment Design intuitive interfaces that accelerate customer onboarding and activation Work directly with customers, translating real-world feedback into meaningful product improvements What We're Looking For 3+ years of professional full-stack experience with React, TypeScript, Node.js, or Python Currently working deeply with React BS/MS in Computer Science, Computer Engineering, or equivalent hands-on experience Self-starter mentality — you identify problems and solve them without waiting to be asked Comfortable operating in a high-pace, high-output environment Clear communicator who collaborates well across functions Compensation & Benefits Base Salary: $200K–$280K USD Schedule: Full-time Location: San Francisco Bay Area (5 days onsite) 100% coverage for medical, dental, and vision Cellphone and internet reimbursement Unlimited meals and snacks on-site Gym and commute reimbursement Visa sponsorship available (H-1B, TN, L-1, E-3, F-1, O-1) Interview Process Online coding assessment (25–30 min) Technical phone interviews (2 rounds) Onsite/virtual final round: live coding, system design, and automation