Contract Staff Software Engineer-FireFox Layout

Team: Firefox Locations: Remote Canada

You will take on the ongoing maintenance and routine engineering work in Firefox’s Layout area (CSS, page layout, APZ, text, images). Working independently at a tech-lead level, you keep the Layout code healthy.

Responsibilities

- Own day-to-day Layout maintenance: fix bugs and regressions, keep tests green, handle incoming issues.
- Diagnose and fix Layout problems across platforms (Windows, macOS, Linux, Android).
- Carry code review and routine upkeep so the FTE engineers can focus on other mission critical projects. .
- Join planning and standards / web-compat meetings as needed.

Definition of done A healthy Layout area, backlog and regressions kept down, with the team’s senior engineers freed to focus on critical Performance and Security issues.

Required qualifications

- Solid CSS and page-layout knowledge.
- Strong debugging and optimization in a multithreaded codebase.
- Able to work independently and lead technically in a large, mature codebase.

Preferred

- Mobile web development, profiling and debugging skills a plus .
- Proven experience in utilization of AI tools (Claude, ChatGPT, etc.) in the investigation, development, debugging, and/or testing of code is a plus.

At Mozilla, we’re serving humanity—by maintaining a secure,



open internet—while alsohelping the individual humans employed here to reach their personal andprofessional goals. With a relatively small team serving hundreds of millions ofpeople, a culture of exploration, and a commitment to mentorship, opportunitiesabound to learn and grow at Mozilla.
- 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 everydayinteractions
- We seek out people from diverse backgrounds and with perspectives differentfrom our own
- We pair purpose with performance and put people ahead of profit

Our impact is global

- 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

Our benefits are world-class

- Flexible work environment (majority of Mozillians work remotely)
- Industry-leading paid parental leave (up to 26 weeks of fully paid leave forchildbearing 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

📌 Contract Staff Software Engineer-FireFox Layout (Canada)
🏢 Mozilla
📍 Canada