Contract Staff Software Engineer-Bug Burndown

About the Position

We are looking for a Contract Staff Software Engineer-Bug Burndown to join our Firefox team at Mozilla Corporation. This role is fully remote and available in Germany, UK, and Canada. Your primary task will be to help reduce Firefox’s WebCompat bug backlog by finishing or verifying the diagnosis of long-tail site-breakage bugs, and by writing interventions or simple fixes (often with AI assistance).

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.

Requirements

• Solid web development skills in HTML, CSS, and 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.

Nice to Have

• Knowledge of Gecko is a strong plus (but can be taught).
• Prior WebCompat or web-standards experience.

We Offer

• Flexible work environment (majority of Mozillians work remotely).
• Industry-leading paid parental leave (up to 26 weeks of fully paid leave for childbearing parents and up to 12 weeks for non-childbearing parents).
• Reimbursement for professional development (up to $3,000/year).
• A work setup including the latest hardware and software of your choice.

About the Company

At Mozilla, we’re serving humanity-by maintaining a safe, open internet-while also helping the individual humans employed here to reach their personal and professional goals. With a relatively small team serving hundreds of millions of people, a culture of exploration, and a commitment to mentorship, opportunities abound to learn and grow at Mozilla.

Our Values

• Purpose is built into our work, with our mission driving every decision.
• We challenge assumptions, the status quo, ourselves, and each other.
• We are transparent: in our code, our business partnerships, and our everyday interactions.
• We seek out people from diverse backgrounds and with perspectives different from our own.
• We pair purpose with performance and put people ahead of profit.

Our Impact

• 1000+ paid staff from over 30 countries.
• Thousands of volunteer contributors across six continents.
• 2 global offices: Berlin and Toronto.
• 9 coworking space locations: San Francisco, San Mateo, London, Paris, Portland, Tulsa, Vancouver, Chicago, and Bellevue.
• Hundreds of home offices globally.

Apply Now

• Remote Germany
• Remote UK
• Remote Canada