Use HTML, CSS, and JavaScript to reduce Firefox’s WebCompat backlog as a Contract Staff Software Engineer focused on site-breakage diagnosis.

Mozilla seeks a Staff Software Engineer for WebCompat bug triage and simple fixes. You will diagnose long-tail bugs, verify existing diagnoses, and write interventions or AI-assisted fixes. The work turns reported breakages into actionable or fixed bugs.

Key Responsibilities:

- Finish diagnosing long-tail WebCompat bugs
- Verify diagnoses for site-breakage reports
- Write WebCompat interventions where appropriate
- Write and land straightforward AI-assisted fixes
- Reproduce and triage incoming breakage reports

Requirements:

- Solid HTML, CSS, and JavaScript development skills
- Fluency with browser developer tools
- Comfort diagnosing cross-browser site breakage
- Comfort using AI tooling for diagnosis and fixes
- Prior WebCompat or web-standards experience

Apply web development, browser debugging, and AI-assisted fixing skills to Firefox WebCompat diagnosis and bug backlog reduction at Mozilla.

📌 WebCompat Staff Software Engineer (Ottawa)
🏢 Mozilla
📍 Ottawa