Description review
Contract Staff Software Engineer-FireFox Layout
Mozilla · Canada · back to the listing
HR standards
64/100
needs work
Title ↔ description
61/100
needs work
Reads as
Frontend Engineer
93% confident
What this role officially is
user interface developer — ESCO, the EU occupation classification
User interface developers implement, code, document and maintain the interface of a software system by using front-end development technologies.
Also known as: front end developer, UI programmer, user interface developers, UI developers, UI developer, user interface engineer
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What the listing never says
- No pay range published. Candidates cannot tell whether applying is worth their time. Pay transparency
- No location or timezone policy stated, so a candidate cannot tell where they may work from. Scope clarity
The listing, marked up
Nothing in the wording of this listing tripped a check. The scores above still judge how complete and coherent it is.
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
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