O
San Francisco, California, United States· Full-time
$347K – $445K/yr
Artificial IntelligenceAI
W
Market pay estimate
$153,550–$226,000 / year for comparable Full Stack Developer roles in United States. Estimated from 29 similar postings (medium confidence) — not stated by the employer.
Role overview
Job description
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 found
…About this listing
- Source: Weekday's official careers site (via Lever) · last confirmed on the source 27 Oct 2026
- Posted 7 Feb 2026
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Role market pulse
How Full Stack Developer demand looks in United States
Live jobs
43
Posted 30d
17
30d movement
+70%
Remote share
30.2%
Salary listed
62.8%
Salary trend 1Y
Not enough history
What they are looking for
Skills & requirements
Department · Technology, Information & Media
Hiring company
Weekday
Technology
View the company profile, current openings and hiring details.
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