About Browser Developers
Browser Developers is a remote browser engineering team. We build custom Chromium and Firefox browsers, browser extensions and cross-platform desktop apps for clients worldwide, and we keep them current after launch. You can meet the people you would work with on our team page.
About the role
You will test builds before they reach clients: what each feature does, how it behaves across browsers and operating systems, and what broke between versions. A custom browser has to be retested after every upstream upgrade, so regression testing is a large part of the role.
Responsibilities
- Plan and run test passes for custom browsers and extensions on Windows, macOS and Linux.
- Check that a browser behaves the same after each upstream Chromium or Firefox upgrade.
- Test installers and auto-update, including upgrades from older versions.
- Automate regression checks for extensions and web interfaces with Playwright.
- Write bug reports with steps, build numbers and evidence a developer can act on.
Requirements
- Experience testing web applications or browser extensions.
- Some automation experience, for example with Playwright or Selenium.
- Careful written bug reports that a developer can act on.
- Comfort with browser DevTools and network inspection.
Nice to have
- Security testing basics for extensions.
- Experience checking extensions against store policies and Manifest V3 limits.
- Scripting in JavaScript, TypeScript or Python.
In your first months
- Run the release test pass for a client browser build.
- Add automated regression tests for an extension.
- Write the test checklist for a Chromium version upgrade.
How to apply
Email your CV and links to your work to info@browserdevelopers.com with the subject “Application: Browser and Extension QA Engineer”. Tell us which of the requirements above you meet, and share code, extensions or products you have worked on if you can.
This is a remote role. Pay, contract type and working hours are discussed with you before any offer. Our hiring team reads every application.