IT & Software

WebCompat Staff Software Engineer

Devconnectplatform

Remote · Nationwide · Canada

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Use HTML, CSS, and JavaScript expertise remotely to diagnose Firefox WebCompat bugs and deliver practical fixes with AI assistance.

Mozilla seeks a Contract Staff Software Engineer to reduce Firefox’s WebCompat backlog. You will investigate real-world site breakage, validate existing diagnoses, and turn reports into actionable or fixed bugs. The work emphasizes browser devtools, cross-browser diagnosis, and targeted interventions.

Key Responsibilities:

  • Finish diagnosing long-tail WebCompat bugs
  • Verify diagnoses for reported site breakages
  • Write WebCompat interventions where appropriate
  • Develop and land simple AI-assisted fixes
  • Reproduce and triage incoming breakage reports

Requirements:

  • Solid HTML, CSS, and JavaScript development skills
  • Comfort debugging real-world website breakage
  • Fluency with browser developer tools
  • Ability to perform cross-browser diagnosis
  • Comfort using AI tooling for diagnosis and fixes

Apply WebCompat debugging, browser devtools, and AI-assisted development skills to improve Firefox’s site compatibility.

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Reference: WJ-4483_1534825 · Posted 08 Nov 2026, 03:12 AM

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