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 $30M in annual recurring revenue — generated by a team of just 20 — 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, 60~70 hrs/week (50 onsite + 10-20 remote, flexible hours)
- 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
