Contract Staff Software Engineer-Bug Burndown

Mozilla

Job details

  • REMOTE
  • UNKNOWN
  • United Kingdom
  • Verified 2026-11-10
  • Source: Mozilla public Greenhouse board

Original job description

You will help reduce Firefox’s WebCompat bug backlog by finishing or verifying the diagnosis of the long tail of site-breakage bugs, and by writing interventions or simple fixes (often with AI assistance). You turn a large queue of reported breakages into diagnosed, actionable, or fixed bugs.

Responsibilities
  • Finish diagnosing, or verify the diagnosis of, long-tail WebCompat bugs.
  • Write WebCompat interventions where appropriate.
  • Write simple fixes (AI-assisted) and land them.
  • Reproduce and triage incoming site-breakage reports.
Required qualifications
  • Solid web development (HTML, CSS, JavaScript) and comfort debugging real-world site breakage.
  • Fluent with browser devtools and cross-browser diagnosis.
  • Comfortable using AI tooling to speed up diagnosis and fixes.
Preferred
  • Gecko knowledge is a strong plus (but can be taught).
  • Prior WebCompat or web-standards experience.

 

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