Senior Frontend Engineer

Mozilla • toronto, Canada

Location toronto, on
Job Type Full-time
Posted June 09, 2026

Role Description

What You’ll Do

  • Build high quality user interfaces for Firefox with accessibility and usability in mind
  • Write code and tests, build prototypes, tackle problems with no clear solution, collaborate with other designers and engineers to make the web a better place
  • Learn about a wide variety of problems and solutions across a large, mature codebase
  • Work with cross functional teams, building relationships and fostering collaboration to reach shared goals
  • Help to level‑up the skills of your fellow engineers through code reviews, giving talks, and/or writing documentation
  • Promote and maintain high standards of code‑quality, focusing on performance, testing, security, usability, accessibility and maintainability
  • Work with driven, committed team members to bring the open web to people around the world
  • Contribute to improving engineering practices and procedures

What You’ll Bring

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