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Staff Software Engineer-Bug Burndown

LocationRemote (Canada; Remote Germany; Remote UK)

SetupRemote

LevelSenior

Posted1w ago

Apply by2026-12-31

Engineering & Technology

Quick answer

Mozilla is hiring a remote Senior Staff Software Engineer-Bug Burndown to reduce Firefox’s WebCompat bug backlog through diagnosing, verifying, and fixing site-breakage bugs.

Role: Staff Software Engineer-Bug Burndown
Organization: Mozilla
Location: Remote (Canada; Remote Germany; Remote UK)
Work setup: Remote
Level: Senior
Category: Engineering & Technology
Apply by: 2026-12-31

The role

Help reduce Firefox’s WebCompat bug backlog by diagnosing, verifying, and fixing site-breakage bugs, often with AI assistance.

What you'll do

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

What it takes

Solid web development (HTML, CSS, JavaScript)
Comfort debugging real-world site breakage
Fluent with browser devtools and cross-browser diagnosis
Comfortable using AI tooling to speed up diagnosis and fixes
Gecko knowledge is a strong plus
Prior WebCompat or web-standards experience

What you'll bring

Solid web development (HTMLCSSJavaScript)Comfort debugging real-world site breakageFluent with browser devtools and cross-browser diagnosisComfortable using AI tooling

Frequently asked questions

Where can I apply for this job?

Apply now on the PCDN.Global website.

Is this a remote position?

Yes, the position is remote-friendly with options for remote work in Canada, Germany, and the UK.

What is the compensation for this role?

The compensation is not specified in the job posting.

What are the key qualifications required for this role?

Key qualifications include solid web development skills, comfort debugging real-world site breakage, and fluency with browser devtools and cross-browser diagnosis.

How do I apply for this position?

You can apply now on the PCDN.Global website.

How to apply

Apply directly on Mozilla's site. We link straight through — no resume parsing, no profile to fill out.

Apply now →

This listing is aggregated from a third-party source and its summary may be auto-generated, so details can be inaccurate or out of date. ForGood is not the employer and is not liable for the content — please verify everything on Mozilla's official posting before applying.