About the role
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 • Strong C++ (JavaScript and/or Rust a plus). • 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 • Prior experience in web browser architecture and development. • Prior Web standards experience. • 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:
Canada Tier 1 Locations
$185,045—$217,700 CAD
Canada Tier 2 Locations
$131,400—$154,600 CAD
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