CareerPlanSign in

Contract Staff Software Engineer-FireFox Layout

Canada🌐 Remote💼 Contract💰 $131,400–$131,400🗓 2026-09-23 → 2026-09-25

Core

Maintain and optimize the Firefox browser rendering codebase, focusing on CSS, page layout, and cross-platform stability.

Role type

Senior Staff Software Engineer (Browser Layout)

Builds

Firefox browser rendering engine and layout systems

Domain

Web Browsers / C++ Systems Programming

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

C++, CSS, web page layout, multithreaded debugging, performance optimization, cross-platform engineering

Preferred skills

JavaScript, Rust, web browser architecture, web standards, mobile web development, AI-assisted development tools

Technologies

C++, CSS, JavaScript, Rust, Windows, macOS, Linux, Android

Responsibilities

Own day-to-day maintenance of the browser Layout area, diagnose and resolve complex Layout issues across multiple OS, investigate performance and stability problems, review code to maintain quality, monitor and reduce technical backlog, work independently at a technical leadership level, participate in web standards discussions.

Seniority

Senior, hands-on IC with technical leadership autonomy

Sourced via lever · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.