arrow_back Back to search
M

Staff Software Engineer-Bug Burndown

Mozilla

Share:
place— home_workOn-site labelFirefox publicAggregated job · GB

eventPublished on Oct 07, 2026 · verifiedWe confirmed on Oct 23, 2026 that it's still live

Is this your business?

About the job

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.

Find Jobs in United Kingdom on Arbeitnow

Keep reading for free

Create a free account to see the full job and apply.

  • badgePortfolio visible to companies
  • notificationsNew job alert by email
  • favoriteFree subscription, cancel at any time