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Staff Software Engineer-Bug Burndown at Mozilla. Location Information: . 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..