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# Full-Stack Engineer

- **Company:** QA Ltd
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Catalyst (Software), FFmpeg, PostgreSQL, MongoDB, Software Engineering, Google Cloud, Large Language Models, Backend, Playwright, Front End Software Development
- **Published:** September 4, 2026
- **Apply:** https://startup.jobs/full-stack-engineer-experienced-ranger-8134660

## About the Role

* 6-10+ years of professional experience in software engineering.
 * Strong desire to lead, execute, and own their own projects.
 * Track record of learning new languages, technologies, and patterns on the job.
 * Comfortable working and reasoning across the stack - frontend, backend, and infrastructure.
 * Willingness to work a hybrid schedule with a minimum of 3 days in-office.
What would set you apart

 * Experience at an early-stage startup
 * Experience with DOM parsing and manipulation
 * Familiarity with LLM APIs and experience using them in a production environment
 * Experience with any of our tech stack: Express+NodeJS, PostgreSQL, MongoDB, Playwright, FFmpeg, GCP

## Description

We're building Ranger to change the status quo of QA. Our mission is to power testing for the world's most ambitious engineering, product, and design teams so they can get back to building.
How We're Already Changing the Game:
Intelligent Test Generation
Leveraging advanced LLMs, we automatically generate reliable and efficient Playwright tests.
Self-Healing Tests
Our system proactively identifies and resolves flaky tests, ensuring consistent and reliable test suites.
Improved failure insights
Get automated failure reports with likely causes, and easy-to-follow steps to reproduce the issue.
Some of the fastest growing companies in the world (Clay, Suno, Dust, and more) use Ranger. We also collaborated with OpenAI, which you can read about here.
Join Our Team
To accelerate our mission we're incredibly excited to announce $8.9M in total funding over two rounds of funding led by XYZ and General Catalyst. Among the many other fantastic backers, they are joined by some of our earliest customers (Clay Co-founder Varun Anand, Suno Co-founder Martin Camacho, Dust Co-founder Stan Polu).
Let's fix the way software teams test their products. We're embarking on an exciting journey and we hope you join us as Ranger leads the way.


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