Contract Staff Software Engineer-FireFox Layout

Team: IT

Location: Canada

Commitment: Contract

Workplace Type: remote

Accountabilities

• Own day-to-day maintenance of the browser Layout area, including resolving bugs, regressions, incoming issues, and test failures.

• Diagnose and resolve complex Layout issues across Windows, macOS, Linux, and Android.

• Investigate performance, rendering, and stability problems within a large, multithreaded codebase.

• Review code and contribute to routine engineering upkeep, helping maintain code quality and system health.

• Monitor and reduce technical backlog and regressions while ensuring the Layout area remains stable and maintainable.

• Work independently at a technical leadership level, identifying problems and driving solutions through implementation and review.

• Participate in planning, web standards, and web-compatibility discussions when relevant to Layout work.

• Collaborate with other engineers to maintain strong implementation practices and share technical context.

• Help ensure senior engineering capacity remains available for high-priority performance and security initiatives.

• Apply AI-assisted development and debugging tools where appropriate to accelerate investigation, implementation, testing, and maintenance.

Requirements

• Strong professional experience with C++, including development and debugging within complex production codebases.

• Solid understanding of CSS and web page layout, including how browser rendering and layout systems operate.

• Strong debugging and optimization skills, particularly within multithreaded systems.

• Ability to independently investigate complex technical issues and deliver reliable solutions in a large, mature codebase.

• Demonstrated ability to operate as a technical leader, exercising sound engineering judgment without requiring close day-to-day supervision.

• Experience diagnosing software behavior across multiple operating systems and platforms.

• Familiarity with JavaScript and/or Rust is an asset.

• Previous experience with web browser architecture or browser development is highly valued.

• Experience working with web standards and web compatibility is an advantage.

• Mobile web development, profiling, and debugging experience is a plus.

• Practical experience using AI tools such as Claude or ChatGPT for software investigation, development, debugging, or testing is an asset.

• Strong communication and collaboration skills, with the ability to participate effectively in technical discussions and code reviews.

Benefits

• Competitive Canadian compensation: CAD $185,045–$217,700 for Canada Tier 1 locations.

• Canada Tier 2 compensation: CAD $131,400–$154,600.

• Remote work: Work remotely from Canada.

• Technical impact: Contribute to a widely used web browser and help maintain critical rendering and layout infrastructure.

• Technical leadership: Operate with significant autonomy and influence within a mature, complex engineering environment.

• Cross-platform engineering: Work across Windows, macOS, Linux, and Android.

• Learning and innovation: Opportunity to work with modern development practices, web standards, performance optimization, and AI-assisted engineering tools.