Apply

Ready to go for it?

AI Apply speeds things up—apply directly if you prefer.

FREE ACCESS
5,000–10,000 jobs/day
Scoutfield Logo

See all jobs on Scoutfield

Search thousands of fresh jobs every day.

Discover
  • Fresh listings
  • Fast filters
  • No subscription required
Create a free account and start exploring right away.
Mozilla

Contract Staff Software Engineer – Firefox Layout

Mozilla

. Take on ongoing maintenance and routine engineering work in Firefox’s Layout area, including CSS, page layout, APZ, text, and images .

Posted 9/22/2026contractRemote • CanadaLead💰 CA$131,400 - CA$217,700 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates strong expertise in C++ and CSS, with a focus on debugging and optimization within a multithreaded codebase. Proven ability to maintain web browser architecture and lead technical initiatives in a collaborative environment.

Highest-signal resume keywords
C++ ProgrammingCSS KnowledgeDebugging and OptimizationWeb Browser ArchitectureMobile Web Development

ATS Keywords

Tailor your resume
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
C++CSSDebuggingOptimizationMultithreaded CodebaseWeb StandardsMobile Web DevelopmentProfilingAI Tools UtilizationCode Review
Soft Skills
Independent WorkTechnical Leadership
Tools & Technologies
ClaudeChatGPT
Industry Keywords
Web Browser DevelopmentLayout MaintenancePerformance IssuesSecurity IssuesBacklog Management

Tech Stack

Tools & technologies
AndroidJavaScriptLinuxMacOSRustC++

About the role

Key responsibilities & impact
  • Take on ongoing maintenance and routine engineering work in Firefox’s Layout area, including CSS, page layout, APZ, text, and images
  • Own day-to-day Layout maintenance by fixing bugs and regressions, keeping tests green, and handling incoming issues
  • Diagnose and fix Layout problems across Windows, macOS, Linux, and Android
  • Carry out code review and routine upkeep so FTE engineers can focus on mission-critical projects
  • Join planning and standards/web-compatibility meetings as needed
  • Maintain a healthy Layout area and reduce backlog and regressions, freeing senior engineers to focus on Performance and Security issues

Requirements

What you’ll need
  • 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
  • Prior experience in web browser architecture and development (preferred)
  • Prior Web standards experience (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 (a plus)