Founding Fullstack Engineer – San Francisco, CA (Hybrid)

My client is a well-funded, high-growth startup delivering embedded marketing tools to small businesses through vertical SaaS platforms. Already launched with major partners reaching hundreds of thousands of end users, they’re now hiring a founding fullstack engineer to help scale their impact.

About the Role

This is a rare opportunity to join as one of the first non-cofounder engineering hires. You’ll own core product decisions, ship production-grade code, and help architect the technical foundation of a platform that’s transforming how SMBs grow.

Ideal for builders who thrive in early-stage environments and want full ownership, momentum, and meaningful customer impact.

What You’ll Build

• Embedded marketing tools (email, SMS, loyalty, and more) for vertical SaaS platforms
• REST APIs and fullstack features that drive real-world SMB growth
• AI-powered workflows that simplify marketing for non-technical users
• Scalable infrastructure using Rails, React, Redis, Postgres, and Kubernetes on AWS

What My Client Is Looking For

This role is for engineers who’ve thrived in high-growth environments and want to do it again—with even more ownership.

Must-haves:

• CS degree from a top-tier university OR 5+ years at a top startup (e.g. Stripe, Plaid, Notion)
• Strong fullstack experience (React + backend; Ruby on Rails preferred or willing to learn)
• Demonstrated career momentum and technical leadership
• GitHub that shows real work—not just buzzwords

Also open to:

• H1B transfers
• New grads from top 10 schools or with standout internships (FANG/unicorns)
  • Must be strong self-starters with active GitHubs and fullstack side projects
  • Compensation up to $170K for top-performing new grads

Nice-to-haves:

• Rails experience at a startup
• Experience building for SMBs or embedded platforms
• Early-stage startup experience (0→1 builder mindset)
• Very active GitHub (thousands of green squares)

Please note: My client is not considering candidates who are currently unemployed, recently self-employed, or have only worked at large companies for extended periods.

Location & Culture

• Hybrid in San Francisco (3–4 days/week in-office near Montgomery BART)
• Relocation assistance available
• Lunch, dinner, and great coffee provided daily
• In-person culture with a tight, ambitious team that truly cares

Compensation & Benefits

• Senior: $225K–$245K
• Mid-Level (3+ yrs): $190K–$210K
• Junior: $175K–$195K
• Top new grads: Up to $170K
• Equity: Top-of-market
• Health, dental, and vision insurance
• 401k
• Unlimited PTO
• Team-wide travel and offsites