Staff Software Engineer-Bug Burndown at Mozilla
- Company: Mozilla
- Location: Remote
- Employment type: Full-time
- Posted: 2026-10-06
- Technologies: JavaScript
About the role
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. .
Apply on Mozilla's official careers page: https://job-boards.greenhouse.io/mozilla/jobs/8239648