Build Firefox fixes and features remotely in Canada using C and C++ across Windows, macOS, and Linux operating systems.

As a Senior Software Engineer on Mozilla’s OS Integration team, you will improve Firefox and other Mozilla products. You will develop cross-platform changes, maintain the installer and updater, and address operating-system-specific defects. The work includes code reviews, debugging, secure coding, and collaboration with distributed engineering teams.

Key Responsibilities:

- Debug and fix software defects affecting Firefox quality
- Develop cross-platform features and operating system improvements
- Maintain and develop Firefox installer and updater components
- Perform code reviews and provide technical direction
- Collaborate across geographically distributed development teams

Requirements:

- Five or more years of software engineering experience
- Robust knowledge of C and C++
- Desktop application development experience on Windows, macOS, or Linux
- Knowledge of secure coding and memory safety concerns
- Strong problem-solving, debugging, and communication skills

Apply C++, debugging, and cross-platform engineering expertise to Firefox OS integration at Mozilla, remotely from Canada.

📌 Senior C++ OS Integration Engineer (Canada)
🏢 Mozilla
📍 Canada