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Firefox OS Integration Engineer, Crash Reporting

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Mozilla

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IT - Software Development

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Job Description:

The OS Integration team ensures Firefox and other Gecko-based products harmonize well with the host operating system and environment. This includes native crash reporting, OS abstraction layers, sandboxing and hardening. We’re a distributed team with expertise in Windows, macOS, and Linux-based operating systems with this role focusing on macOS. In this role, you will be a member of the OS Integration team specializing in crash reporting for Firefox. You will help to maintain and evolve client-side crash and error reporting across supported operating systems, enabling other engineers to maintain a high quality of our products.

Job Responsibility:

  • Develop, test, and ship fixes and new features for Firefox crash reporting, with a focus on creating a high-quality user and developer experience
  • Work in the open source Mozilla codebase touching a variety of technologies including C++, rust and JavaScript
  • Maintain and evolve code that detects and reports crashes. In doing so you will interact with low-level OS primitives
  • You will analyze crash data and come up with insights about it
  • Grow your expertise while collaborating with a distributed team and participating in technical discussions, planning, code reviews, and problem solving
  • Break down problems into manageable units, seek early feedback, and document your design choices to foster learning and alignment

Requirements:

  • A degree in Computer Science or in an affine topic or comparable work experience
  • The desire to understand the nitty-gritty details of stack walking and post-mortem analysis of a process
  • Proven fluency in Rust and/or C++, for two years in a professional environment
  • Ideally some engineering work examples of low-level programming
  • 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 our values: Welcoming differences, Being relationship-minded, Practicing responsible participation, Having grit

Nice to have:

Knowledge of compiler, debugger or OS development are bonuses

What we offer:
  • Generous performance-based bonus plans to all eligible employees
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days
  • Country specific holidays plus a day off for your birthday
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)
  • Flexible work environment
  • Industry-leading paid parental leave
  • Reimbursement for professional development (up to $3,000/year)
  • A work setup including the latest hardware and software of your choice

Additional Information:

Job Posted:
January 02, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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