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Contract Staff Software Engineer-FireFox Layout

Mozilla · company site4d

1 · Can you apply from ?

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2 · What reaches you

1Pay
2Platform fee− $0
3Payout fee · Wise− $16 – $185
≈ In your money
$7,570 / month
up to $7,740 with lower fees

Wise fee page, checked 25 Sep 2026
Fixed fees assume one withdrawal a month.

3 · How you get paid

Unknown — ask the company

How often
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First money
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4 · Your working hours

Not stated

The ad doesn’t say which hours. Ask the company.

5 · Trust

Company site · found 25 Sep 2026
No one should ask you to pay to work.
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They ask for

Experience not statedNo degreeC++JavaScriptRustHTML and CSSDebuggingOptimization

Full description

Shown as posted, in English

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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JobMozilla · company sitePosted 4d ago

Contract Staff Software Engineer-FireFox Layout

1 · Can you apply from ?

Not open

The ad doesn’t say — see the full posting.

4 · Your working hours

Not stated

The ad doesn’t say which hours. Ask the company.

5 · Trust

Company siteFound 25 Sep 2026
No one should ask you to pay to work.
Something wrong?Report this post

They ask for

Experience not statedNo degreeC++JavaScriptRustHTML and CSSDebuggingOptimization

Full description

Shown as posted, in English

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