Teams at Mozilla

Build and improve Firefox WebCompat internal dashboards, reporting tools, and broken-site screenshot capture pipelines. The role involves creating reliable data views for triage and metrics, automating screenshot workflows, collaborating with WebCompat and QA teams, and translating reporting needs into effective tooling. Familiarity with WebCompat workflows, Bugzilla, screenshot automation, and machine learning is preferred.

Implement and ship approved UX improvements for Firefox screen, window, and tab sharing. Build accessible, tested, and localizable browser UI in a large codebase; collaborate with UX and QA, support testing with web conferencing services, and contribute through public code review. The role requires production front-end experience with JavaScript, HTML, and CSS, automated UI testing, rapid onboarding to mature codebases, and effective asynchronous communication.

Diagnose and fix WebGL bugs in Gecko using C++ and Rust, including security issues. Develop and land tested fixes, participate in code reviews, manage the WebGL bug queue, and improve Firefox graphics functionality. The role requires graphics or GPU experience, strong multithreaded debugging skills, and familiarity with sandbox and IPC architectures. Browser-engine, Gecko, security research, or fuzzing experience is preferred.