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JustAI

3 open roles

Full Stack Software Engineer

$120k to $160k

San Francisco, CA, USFull-time1+ yearsPosted Jan 11, 2026

Against the San Francisco typical range

Job description

Role Overview

We’re looking for a Full Stack Software Engineer to design, implement, and QA large customer features, end-to-end. In this role, you’ll work with product and design teams to scope emergent customer needs and design and implement solutions across our entire stack.


What You’ll Do

  • Take responsibility for projects from initial scoping to production, breaking large, ambiguous problems into clear milestones with measurable outcomes
  • Own quality and outcomes across the full lifecycle, including testing, launch, and rollout
  • Partner closely with product and design, scoping and evaluating tradeoffs between technical feasibility and product experience

Qualifications

  • 2+ years of industry experience in full-stack engineering, with strong backend skills
  • Experience in building platforms end-to-end, with a focus on product requirements
  • You are a quick learner, and you thrive in a fast-paced, constantly evolving environment

Why Join JustAI

  • High ownership, high impact - your work defines how AI meets real customer workflows
  • Founding-stage startup backed by YC & Peak XV (Sequoia), and growing fast
  • Work with leadership from Twitter, Pinterest, and Goldman Sachs
  • Competitive salary and meaningful equity

Description copied from JustAI's careers page. Read the full posting before you apply.

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