Founding Senior Full-Stack Engineer | Equity & Impact
sarsfield groupRedwood City (CA)
Founding Senior Full-Stack Engineer | Equity & Impact
Posted today
sarsfield groupRedwood City (CA)
SENIORITY
Senior
About the role
Our client, a fast-growing YC-backed Voice AI startup, is seeking a Founding Senior Full-Stack Engineer in Redwood City, CA. You’ll build the core platform powering millions of AI-driven conversations using React, TypeScript, and Node.js.
You’ll own features end-to-end, from architecture to production deployment, integrate telephony, dashboards, and analytics, and support onboarding. Equity 0.25–0.45% with unlimited meals, gym, and commute reimbursement; full-time on-site role.
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.