M
Canada· Remote
C$185K – C$217.7K/yr
● Top 25% pay versus similar roles
JavaScriptLinuxAIC++
M
Market pay estimate
CA$120,000–CA$196,603 / year for comparable Software Engineer roles in Canada. Estimated from 192 similar postings (high confidence) — not stated by the employer.
Role overview
Job description
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.
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About this listing
- Source: Mozilla's official careers site · still listed there on 11 Nov 2026
- Posted 6 Oct 2026
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Role market pulse
How Software Engineer demand looks in Canada
Live jobs
324
Posted 30d
196
30d movement
+154.5%
Remote share
37%
Salary listed
77.5%
Salary trend 1Y
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What they are looking for
Skills & requirements
Department · Firefox
Hiring company
Mozilla
Technology
The independent browser that has your back. Firefox blocks trackers, has a free built-in VPN, puts you in control of AI, and never sells your personal data.
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