Your browser does not support javascript! Please enable it, otherwise web will not work for you.

Senior Software Engineer, OS Integration

Home > C/C++ programming jobs

Senior Software Engineer, OS Integration in Canada new

  • Mozilla
  • Full time
  • Email
  • Remote

Responsibilities

  • Debug and fix software defects in Firefox and other Mozilla products.
  • Develop new features, improvements, and OS-specific fixes across Windows, macOS, and Linux.
  • Maintain and develop the Firefox installer and updater.
  • Contribute to native crash reporting, OS abstraction layers, sandboxing, hardening, and enterprise DLP support.
  • Break down tasks and collaborate with distributed engineering teams to deliver solutions.
  • Perform code reviews and provide technical direction.
  • Interact with teams throughout the organization.

Requirements

  • 5+ years of overall software engineering experience.
  • Strong knowledge of C and C++.
  • Experience developing desktop applications on Windows, macOS, or Linux with C++.
  • Knowledge of JavaScript and HTML.
  • Knowledge of secure coding practices and memory safety concerns.
  • Strong problem-solving, debugging, written communication, and verbal communication skills.
  • Ability to work effectively in a distributed team environment.
  • Bonus experience with installer or updater development, Windows internals such as BITS server or MSIX packages, or open-source contributions and personal engineering projects.

Benefits

  • Performance-based bonus plans for eligible employees.
  • Medical, dental, and vision coverage.
  • Retirement contributions with 100% immediate vesting.
  • Quarterly company-wide wellness days.
  • Country-specific holidays and a birthday day off.
  • One-time home office stipend.
  • Annual professional development budget.
  • Paid parental leave.
  • Employee referral bonus program.
  • Additional benefits such as life and AD&D insurance, disability coverage, and EAP, varying by country.

Mozilla

Mozilla makes browsers, apps, code, and tools. Mozilla shapes the future of the Internet by advocating for user rights, promoting open standards, and developing software products that prioritize privacy, security, and user control. By working on the web as a platform, you can help create more opp...

Similar positions

Embedded Software Engineer

  • Harmattan AI
  • Full time
  • USA
  • 11/10/2026
  • Austin, TX

Senior Engineer, Graphics

  • Scopely
  • Full time
  • UK
  • 11/10/2026
  • Remote

Senior Software Engineer I

  • Electronic Arts
  • Full time
  • Others
  • 11/10/2026
  • Hyderābād, India

Senior Software Engineer, OS Integration

  • Mozilla
  • Full time
  • Canada
  • 11/10/2026
  • Salary: C$95k-C$139k
  • Remote

Senior Firmware Engineer

  • Hinge Health
  • Full time
  • USA
  • 11/10/2026
  • Salary: $156k - $215k/yr
  • San Francisco, CA