Founding Full-Stack Engineer
Weekday · San Francisco, California
Extracted from the posting
Founding full-stack engineer building the core product from the ground up in San Francisco. The work covers end-to-end features across frontend and backend, API and schema design, and reliability and performance improvements, with work done closely with founders, product, and design. Required stack is TypeScript, React, and Node.js; nice-to-haves include Next.js, Postgres/Redis, AWS/GCP, Docker, and CI/CD.
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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