WebCompat Staff Software Engineer

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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