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Staff Engineer, Front End (Desktop)

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Mozilla

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Location:

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

150000.00 - 175000.00 USD / Year
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Job Description:

As a Staff Software Engineer, Front-End, you’ll serve as a domain expert who deeply understands the complexities of shaping seamless, user-focused interfaces and delivering high-quality front-end solutions that align with product strategy. You’ll join a team of talented front- and back-end engineers who bring deep expertise to the development and maintenance of our flagship desktop application, cherished by millions of users worldwide for over 20 years.

Job Responsibility:

  • Lead complex, ambiguous technical initiatives requiring cross-team and cross-organization coordination
  • Own and deliver projects spanning new features, code quality improvements, tooling, and process optimization
  • Partner with senior engineers and product managers to define and execute technical strategy, reduce technical debt, and improve long-term maintainability
  • Collaborate closely with UX Engineers to ensure accessibility and usability are built in from the start (WCAG, ARIA)
  • Establish and promote scalable front-end architecture through shared frameworks and guidelines
  • Write high-quality, testable, and maintainable code
  • contribute to code reviews, testing, regression triage, and patch integration
  • Mentor and support engineers across the team, fostering a culture of learning and continuous improvement

Requirements:

  • 10+ years of experience in front-end software development, building scalable, maintainable, and user-focused systems
  • Extensive knowledge of modern vanilla JavaScript concepts (module patterns, async and promises, custom elements and shadow DOM), and up to date knowledge with the most recent ECMAScript specification
  • Strong command of modern JavaScript frameworks such as React, Vue, or similar, and experience transitioning legacy codebases to new technologies
  • Deep knowledge of HTML5 structures and advanced accessibility patterns and Deep knowledge of modern CSS patterns and methods
  • In-depth understanding of system architecture, design patterns, and software engineering best practices, with a focus on performance, scalability, and maintainability
  • Proven ability to act as a technical lead and mentor, providing guidance on complex technical problems and supporting the growth of other engineers
  • Experience developing and testing applications across multiple platforms (Windows, macOS, and Linux), with expertise in Git or Mercurial and modern version control workflows
  • Excellent communication and documentation skills, a collaborative approach to cross-functional work
  • A strong commitment to continuous learning and improvement

Nice to have:

  • Experience contributing to or leading open-source projects
  • Experience with Python or other programming languages
  • Ability to engage with and support a global community of developers, including managing feedback and fostering an inclusive and productive ecosystem
  • Proficiency in French, German, Japanese, or another language in addition to English
What we offer:
  • Fully remote work & schedule flexibility
  • Latest Laptop
  • Discretionary Annual Bonus Program
  • Monthly Remote Work Stipend
  • Annual Professional Development Stipend
  • Access to Udemy Learning Platform
  • Industry Conferences
  • Company All Hands
  • 24 days PTO per year (prorated)
  • Your Birthday
  • Year-end Company Shutdown
  • 9 Wellbeing Days
  • Public Holidays
  • Other Paid Leave
  • Quarterly Wellbeing Stipend for Personal / Family Activities
  • 401(k) / RRSP/ Pension Contributions
  • Health, Dental, & Vision Insurance
  • Disability Insurance
  • Life Insurance
  • Employee Assistance Program
  • Paid Parental Leave
  • Paid Sick Days

Additional Information:

Job Posted:
February 14, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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