Contract Staff Software Engineer-FireFox Layout 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.
Robust 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.
Hiring Ranges:
$185,045 - $217,700 CAD
$131,400 - $154,600 CAD

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