Founding Full-Stack Engineer

Company: weekdayworks
Location: San Francisco, California
Type: full_time
Posted: Aug 19, 2026
Views: 3

✨ AI Summary

A seed-to-Series B startup in San Francisco is hiring a founding full-stack engineer for an on-site, early-hire role. You'll build core product features end-to-end using TypeScript, React, and Node.js, with nice-to-haves including Next.js, Postgres/Redis, and LLM APIs. Requires 2–8 years of experience, a product-minded builder with high ownership, and comfort in 0→1 environments. No salary range or remote policy mentioned.

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
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About the Company

Name: weekdayworks

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