Summary
✨ AI‑Generated
A Staff Software Engineer is sought to reduce a large backlog of web compatibility issues by diagnosing, verifying, and resolving long-standing site-breakage problems. You will investigate complex web behavior, complete or validate existing diagnoses, and contribute engineering fixes that improve compatibility across the web. The position is remote and designed for an experienced engineer comfortable tackling difficult, long-tail technical issues.
Highlights
Fully remote opportunity available across multiple countries, focused on improving web compatibility and resolving long-standing browser issues. The role combines software engineering with diagnosis, verification, and resolution of complex site-breakage problems.
Description
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Staff Software Engineer-Bug Burndown
at Mozilla Corporation
Team: Firefox Locations: Remote Canada; Remote Germany; Remote UK
Remote Canada; Remote Germany; Remote UK
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.Remote Canada; Remote Germany; Remote UK
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