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Senior Frontend Engineer

Mozilla

toronto, on, Canada Full-time June 03, 2026

Found 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

4+ years experience as a sof...

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