Senior Software Engineer

Responsibilities

• 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 using data insights.
• Tackle platform-specific challenges in low-level operating system integration on Windows and/or macOS.
• Collaborate with managers and teammates to scope and prioritize work in alignment with team goals.
• Participate in code reviews and contribute to technical discussions with peers.
• Take ownership of complex bugs and lead efforts to improve the Firefox experience for millions of users.

Requirements

• 3-5 years of experience as a Software Engineer.
• Experience with systems-level programming on at least one major platform (Windows or macOS).
• Solid programming skills in C/C++.
• Effective communicator and collaborator, especially within distributed teams.
• Ability to break down technical work and make steady progress within project timelines.

Preferred Qualifications

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

Benefits

• Generous performance-based bonus plans.
• Rich medical, dental, and vision coverage.
• Generous retirement contributions with 100% immediate vesting.
• Quarterly all-company wellness days and a well-being stipend.
• One-time home office stipend and annual professional development budget.
• Considerable paid parental leave.

About the Company

Mozilla is a non-profit-backed technology company dedicated to shaping the internet for the better. We build pioneering brands like Firefox, the privacy-minded web browser, used by hundreds of millions of people worldwide. As an open-source driven organization, we focus on making the internet a public resource that is accessible, secure, and built for people rather than companies.