Job Url: https://job-boards.greenhouse.io/mozilla/jobs/7229869

Job Description: What you’ll bring: 
5+ years of experience in JavaScript/TypeScript, React, Redux, and browser-based UI development.
A strong background in building complex, interactive UIs that manage large data sets efficiently.
Knowledge of profiling, performance tooling, and testing.
Knowledge of frontend testing frameworks (e.g., Jest, React Testing Library) and best practices in maintainable UI codebases.
Strong and respectful communication skills and ability to collaborate across engineering teams.
Experience working with performance visualization is a plus.
Familiarity with the Firefox Profiler or Chrome DevTools is a plus.
Commitment to our values:
Welcoming differences
Being relationship-minded
Practicing responsible participation
Having grit