• Jobs
  • Startups
  • Hire
LoginSign up

Role description

Full Stack Software Engineer

Just Words logoJust WordsYC W24
TypeFull-time
WorkplaceOn-site
SeniorityJunior
Salary$120,000–$160,000
LocationSan Francisco, CA
Posted10/10/2026
Engineering

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

Relevant archetypes

Apply on LinkedIn
Save

Company info

Just Words logo

Just Words

justwords.ai helps companies boost user retention by dynamically refreshing content on emails, push, in-app messages and websites. It is built on a modern stack that replaces old-school campaign marketing with an ML-first approach to content personalization. We help turn the cost of experimentation to zero by enabling growth teams to be in a state of continuous testing with our ranking systems.

YC W24
HQSan Francisco, US
Size9 employees
IndustrySoftware Development
Unlock human wisdom
ThesisTermsPrivacy
Tech stack
next-js, mixpanel, owned-it, optimizely, figma, amazon-web-services, kubernetes, loom, canva, google-cloud-platform

Claim justwords.ai

Work at justwords.ai? Sign in to claim this org and manage its profile.

© 2026 Saywise Inc.