Contract Staff Software Engineer-FireFox Layout

Mozilla-Corporation; Canada; Remote; CAD 131,000 - 218,000; Full time

Job summary

Mozilla-Corporation Contract Staff Software Engineer for Firefox Layout. This remote Canada role focuses on ongoing maintenance and routine engineering in the Layout area (CSS, page layout, APZ, text, images).

You will work independently at a tech-lead level to keep the Layout code healthy. Responsibilities include fixing bugs, keeping tests green, diagnosing cross-platform Layout issues (Windows, macOS, Linux, Android), and participating in planning/standards meetings.

Qualifications

• CSS and page-layout knowledge required.
• Strong debugging in a multithreaded codebase.
• Ability to work independently and lead technically.

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 to free FTE engineers for other projects.
• Join planning and standards / web-compat meetings as needed.

Skills

CSS

Page layout

Debugging

Multithreaded debugging

Leadership

Job description

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.
• 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.

Hiring Ranges:

$185,045 - $217,700 CAD

$131,400 - $154,600 CAD