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    WE

    Weekday

    B2B Software and Services

    Founding Full-Stack Engineer

    San Francisco, United StatesOn-SiteFull-time2–8 yrs experiencePosted 2mo ago
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    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 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

    Job details are sourced from the employer's original posting.

    Open job posting
    WE

    About the company

    Weekday

    AI recruiter that runs outbound sourcing campaigns to find top talent

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    Industry
    B2B Software and Services
    Open roles
    40

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