Founding Full-Stack Engineer

About the role

This role is for one of our clients

Location: San Francisco (On-sit)

Experience: 2–8 years

Stage: Seed → Series B

Role Type: Early hire / founding engineer

Why This Role Exists

You’ll help build the core product from the ground up. This is a hands-on role for someone who loves shipping, thrives in ambiguity, and wants ownership over major product surfaces at an early-stage company.

What You’ll Do

Build end-to-end product features across frontend and backend

Ship quickly in 0→1 environments

Design APIs, schemas, and workflows

Partner closely with founders, product, and design

Improve reliability, performance, and developer experience

Establish engineering best practices

Use modern AI developer tools to move faster (LLM copilots, agent workflows, testing automation)

What We’re Looking For

Strong TypeScript, React, and Node.js

Experience shipping production web products

Startup or founding-engineer background (or equivalent)

Product-minded builder with high ownership

Comfortable working independently in small teams

Nice to Have

Next.js

Postgres / Redis

AWS / GCP

Experience integrating LLM APIs or AI tooling

Docker & CI/CD

Active GitHub presence

See the posting on Weekdayworks's site