Senior Frontend Engineer

This is a rare opportunity to join one of the fastest-growing voice AI startups, recently scaling from $5M to $80M ARR with a small, high-ownership engineering team. If you want to own major product features, work directly with customers, and help shape the frontend at a company recognized by Y Combinator, a16z, and more, this could be your next big step. What You Will Do Build and ship React-heavy frontend features end to end, including prompt management tools, dashboards, and analytics.Write production-grade React and TypeScript code live, without AI assistance. This is a must, and interviews include live React coding.Collaborate closely with backend and full-stack engineers on a team of about seven frontend-focused developers.Work directly with customers to onboard them, debug issues, and turn their feedback into real UX improvements.Own major frontend architecture decisions and iterate quickly in a fast-paced, high-growth startup environment.Report directly to the CTO (a co-founder) and have outsized ownership on a small team. What Is Expected You have 3-7 years of professional frontend engineering experience, with at least 3-5 years hands-on with React.You are currently working as a frontend engineer with React at your core.You can write expert-level React without relying on AI tools. This is non-negotiable.You have production TypeScript experience, and Node.js is a plus.You have spent 1.5+ years at a VC-backed startup, and held at least one role at a well-known tech company or high-growth YC startup.You hold a B.S. in Computer Science, Computer Engineering, or Electrical Engineering from a top-tier university (or have strong YC/top-company experience).You can work on-site in Redwood City, CA, Monday to Friday, plus remote Sundays (6-day work schedule). What Is Offered $200K to $300K base salary plus meaningful equity.100% medical, dental, and vision coverage.$70/day DoorDash credit and $200/month wellness reimbursement.Visa sponsorship and transfers (H-1B, TN, L-1, E-3, F-1 OPT/CPT, O-1), plus relocation support.High ownership and direct impact, reporting to the CTO, in a small, ambitious team.