Founding Full-Stack Engineer
Weekday AI
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 We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
Vacancy posted 4 days ago
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