Senior Software Engineer, OS Integration
Posted 2hrs ago
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Job Description
Senior Software Engineer developing cross-platform OS integration, installer, and updater features for Mozilla’s open-source Firefox browser. Debugging defects and guiding distributed engineering teams.
Responsibilities:
- Develop fixes, improvements, and new features for Firefox, including cross-platform work
- Maintain and develop the Firefox installer and updater
- Debug and fix software defects to improve Firefox quality and browsing experience
- Contribute to new features and improvements
- Break down tasks and work with others to deliver solutions
- Collaborate with experienced software engineers
- Perform code reviews and provide technical direction
- Work with a geographically-distributed development team
- Interact with teams throughout the organization
Requirements:
- 5+ years of overall software engineering experience
- Strong knowledge of C and C++
- Experience with desktop application development on Windows, macOS, or Linux with C++
- Knowledge of web technologies such as Javascript and HTML
- Knowledge of secure coding practices and memory safety concerns
- Strong problem-solving and debugging skills
- Written and verbal communication skills with a collaborative mindset
- Willingness to work effectively in a distributed team environment
- Commitment to Mozilla’s values: Play to win; Build for People first; Engage Evidence over Ego; Decide and Deliver; Ship, learn and repeat
- Bonus: Installer and/or Updater development on any OS
- Bonus: Windows internals like the BITS server or MSIX packages
- Bonus: Open-source contributions or personal engineering projects
Benefits:
- Generous performance-based bonus plans to all eligible employees - we share in our success as one team
- Rich medical, dental, and vision coverage
- Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
- Quarterly all-company wellness days where everyone takes a pause together
- Country specific holidays plus a day off for your birthday
- One-time home office stipend
- Annual professional development budget
- Considerable paid parental leave
- Employee referral bonus program
- Other benefits (life/AD&D, disability, EAP, etc. - varies by country)












