About this role
Senior Software Engineer, WebExtensions at Mozilla. Location: United Kingdom or Canada. Role: implementing APIs, debugging issues, supporting developers Requirements: 4+ years software development experience; strong JavaScript, DOM APIs, HTML, CSS; familiarity with browser architecture, API design, large codebases, distributed teams, and open-source workflows. C++/Rust experience is a plus. Category: Software Development Seniority: Mid Level Tools: JavaScript, DOM APIs, HTML, CSS, WebExtensions, Gecko, Firefox, C++, Rust, Android, GeckoView, Bugzilla, GitHub Commitment: Full Time Workplace: Remote Languages: English