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Contract Staff Software Engineer-FireFox Layout

Mozilla Berlin·131,400 – 217,700 CAD

Primary stack

C++CSS

Nice to have's

JavaScriptRustAI

Job description

About the Position

We are seeking a Contract Staff Software Engineer for Firefox Layout to join our team. You will be responsible for the ongoing maintenance and routine engineering work in Firefox’s Layout area, including CSS, page layout, APZ, text, and images. Working independently at a tech-lead level, you will 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 out 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.

Requirements

  • 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 (e.g., Claude, ChatGPT) in the investigation, development, debugging, and/or testing of code is a plus.

Salary

  • Canada Tier 1 Locations: $185,045 - $217,700 CAD
  • Canada Tier 2 Locations: $131,400 - $154,600 CAD

We Offer

  • Remote work from anywhere in Canada.
  • Competitive salary based on experience and location.
  • Opportunities for professional growth and development.

About the Company

Mozilla is a global non-profit dedicated to a healthy, private, open, and participatory internet for all. Join our team to help shape the future of the web.

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