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Mozilla

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Mozilla

Software Engineer, Firefox Desktop Integrations

Mozilla Corporation operates as a non-profit-backed technology organization dedicated to maintaining the internet as an open public resource. Reaching over 225 million monthly users, the company…

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Role Snapshot

Hiring Now
Work arrangement
Remote
Where applicants may be
Applicants in Canada only
Salary
Not specified
Apply by
Not specified
Employment type
Full-time
Experience
Not specified
Added to Jobsiz1h agoEmployer posted Oct 15, 2026
Listing Views0
Applications0
Apply BeforeNo deadline

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About This Role

Mozilla Corporation operates as a non-profit-backed technology organization dedicated to maintaining the internet as an open public resource. Reaching over 225 million monthly users, the company develops privacy-focused products like the Firefox web browser and works across domains including artificial intelligence, security, and social media. The organization is currently hiring a remote Software Engineer for the Firefox Desktop Integrations team. This early-career position suits an individual contributor who can tackle…

Job Description

Mozilla Corporation operates as a non-profit-backed technology organization dedicated to maintaining the internet as an open public resource. Reaching over 225 million monthly users, the company develops privacy-focused products like the Firefox web browser and works across domains including artificial intelligence, security, and social media. The organization is currently hiring a remote Software Engineer for the Firefox Desktop Integrations team.

This early-career position suits an individual contributor who can tackle engineering assignments lasting several weeks with peer collaboration. Working within a globally distributed, open environment, the engineer will help connect Firefox with various operating system platforms, focusing primarily on Windows and macOS. Daily responsibilities involve participating in code reviews, resolving bugs, collaborating on installation and update workflows, and communicating blockers promptly. Team members build domain expertise steadily with guidance from senior engineers.

The role requires systems-level programming background and C/C++ knowledge. Qualified applicants should bring an eagerness to learn, a growth mindset, and clear communication habits. Mozilla provides comprehensive medical, dental, and vision insurance, retirement contributions with immediate vesting, performance-based bonuses, home office stipends, professional development budgets, paid parental leave, and wellness days.

Responsibilities

  • Build and maintain Firefox features tied to software installations, updates, and operating system integrations
  • Implement improvements to installation and update processes under the guidance of senior engineers
  • Address platform-specific engineering challenges on Windows and macOS where the browser interacts with the operating system
  • Partner with teammates and managers to scope tasks, track progress, and request assistance
  • Engage in code reviews to support codebase quality and build technical understanding
  • Identify and resolve software bugs to enhance the user experience
  • Collaborate across a distributed team within an inclusive environment

Requirements

  • Experience with systems-level programming on major platforms such as Windows or macOS
  • Proficiency in C/C++ programming
  • Willingness to communicate clearly, ask questions, and request feedback
  • Ability to contribute to collaborative projects and build technical skills
  • Growth mindset with enthusiasm for impactful software development

Qualifications

  • Exposure to or experience with Rust
  • Familiarity with Linux or macOS internals
  • Exposure to native Windows or macOS APIs including Win32 or Cocoa
  • Previous participation in open source projects or interest in learning open source contribution

Core Skills

Benefits

  • Performance-based bonus plans
  • Medical, dental, and vision coverage
  • Retirement contributions with 100 percent immediate vesting
  • Quarterly all-company wellness days
  • Country-specific holidays and a birthday day off
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Paid parental leave
  • Employee referral bonus program

Frequently Asked Questions

Answers are based only on the employer’s listing; where it doesn’t say, neither do we.

Is this job remote?

Yes, the posting indicates a remote work arrangement with a geographically distributed team.

What is the employment type?

The posting specifies full-time employment.

What salary does this position offer?

The posting does not specify a general salary, but lists hiring ranges for Canada locations, such as $82,000 to $110,000 CAD for Canada Tier 1 locations and $74,000 to $99,000 CAD for Canada Tier 2 locations.

What technical skills are required?

Applicants must have C/C++ programming proficiency and experience with systems-level programming on major platforms like Windows or macOS.

Sample Interview Questions

AI-generated questions tailored to this specific role — a preview of the full practice set.

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Posted by Mozilla

Source: Mozilla

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Posted by employer: Oct 15, 2026

Added to Jobsiz: Oct 15, 2026

The description was written by Jobsiz from the employer’s listing. Always check the original listing before applying.

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