Senior Software Engineer, Desktop Integrations (Firefox)

Position Overview

Mozilla Corporation is seeking a Senior Software Engineer to join the Firefox Desktop Integrations team. This role focuses on enhancing the installation, update processes, and operating system integration of the Firefox browser, particularly on Windows and macOS. You will contribute to architectural discussions, drive feature development, and play a key role in delivering high-quality software that aligns with team goals.

About the Team

The Firefox team is dedicated to building the fastest, friendliest, and most usable browser. The Desktop Integrations team specifically works on updates, installs, and integrating Firefox with different operating systems. This is a geographically distributed team that values working in the open and contributing to the code that powers the Firefox browser on multiple desktop platforms.

About the Role

As a Senior Software Engineer, you will:

• Contribute to the development and improvement of Firefox features related to installs, updates, and OS integrations.
• Implement enhancements to the Firefox installation and update experience, guided by data insights.
• Address platform-specific challenges in low-level operating system integration on Windows and/or macOS.
• Collaborate with your manager and teammates to scope and prioritize work.
• Participate in code reviews and technical discussions.
• Take ownership of complex bugs and lead efforts to improve the Firefox experience.
• Work closely with a geographically distributed team in a highly collaborative environment.

Requirements

• Experience with systems-level programming on at least one major platform (Windows, macOS).
• Solid programming skills in C/C++.
• Effective communication and collaboration skills, especially in distributed teams.
• Ability to break down technical work and make steady progress within project timelines.
• A collaborative mindset and a desire to contribute to team success.

Bonus Points

• Programming experience in Rust.
• Experience working with Windows and/or macOS APIs at a low level (e.g., Win32, Cocoa).
• Additional experience with Linux, or macOS internals.
• Contributions to open-source projects.

We value a variety of voices within our team and at Mozilla. You don't need to check every box on this list to apply.

Company Information

Why Mozilla?

Mozilla Corporation, a non-profit-backed technology company, has been shaping the internet for over 25 years, creating pioneering brands like the privacy-minded Firefox browser. With over 225 million monthly users, Mozilla is focused on reclaiming an internet built for people, not companies, working in diverse areas including AI, social media, and security, all while staying true to its core mission.

Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation, meaning it is not beholden to shareholders but to its mission. Mozillians, along with thousands of volunteer contributors, design, build, and distribute open-source software that empowers people to enjoy the internet on their own terms.

Compensation & Benefits

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• Benefits:
  • Generous performance-based bonus plans for all regular employees.
  • Rich medical, dental, and vision coverage.
  • Generous retirement contributions with 100% immediate vesting.

Application Instructions

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