Mozilla
Contract Staff Software Engineer-Bug Burndown
Canada, UK, Europe
UTC-8 to UTC+1 Contract
Lead or Staff
- Where you can live
- Remote Germany · Remote UK
- Working hours
- Overlap with UTC-8 to UTC+1
- Salary
- Not published
- Posted
- October 20, 2026
JavaScript
HTML and CSS
Summary from the posting
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.
This is a short summary. The full description, requirements and the application form are on Mozilla's own career page.