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Contract Staff Software Engineer – WebCompat & Bug Triage

FrontendWorkplace — unknown
Published on 2026-10-20
These details were extracted automatically from the original listing. They may not be complete or fully up to date — it's worth checking the original job post.

About this role

Help reduce Firefox’s WebCompat bug backlog by diagnosing and reproducing website breakages, writing browser interventions, and landing simple fixes. AI tools may be used to speed up diagnosis and implementation.

About the company

Mozilla builds open-source products and technologies, including Firefox, that prioritize privacy, security, and an open internet.

The team

WebCompat

Stack

HTMLCSSJavaScriptFirefoxGecko

What you'll do

  • Diagnose or verify diagnoses of long-tail WebCompat bugs
  • Write WebCompat interventions where appropriate
  • Implement and land simple fixes, with AI assistance where useful
  • Reproduce and triage incoming site-breakage reports

What we're looking for

  • Solid web development skills in HTML, CSS, and JavaScript
  • Experience debugging real-world website breakage
  • Fluency with browser developer tools and cross-browser diagnosis
  • Comfort using AI tools to accelerate diagnosis and fixes

Nice to have

  • Knowledge of Gecko
  • Experience with WebCompat or web standards
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