Contract Staff Front End Engineer (Web Conference/Screen Sharing)

About the role

Mozilla is seeking a contract front‑end engineer to bring approved screen‑sharing UX designs to Firefox. The position is fully remote (Canada) and focuses on building accessible, localized browser UI for video‑call integrations such as Google Meet, Zoom, and Jitsi.

Responsibilities

• Translate approved UX mockups into production‑ready JavaScript, HTML, and CSS for screen, window, and tab sharing features.
• Develop and maintain browser UI components that meet Mozilla’s standards for testing, accessibility, and localization.
• Collaborate with UX designers to resolve edge‑case scenarios and with QA engineers to validate implementations.
• Support partner testing across major web‑conferencing platforms.
• Submit code through public review on Phabricator and ensure it lands in mozilla‑central.

Eligibility

• Minimum 4 years of experience building production‑grade user interfaces with JavaScript, HTML, and CSS.
• Proven ability to follow approved designs and raise concerns when designs lack coverage.
• Strong written communication skills for distributed, asynchronous teamwork.
• Comfort working in open‑source environments using Bugzilla and Phabricator.

Skills

• JavaScript, HTML, CSS
• Accessibility best practices for modal dialogs and list navigation
• Automated UI testing frameworks (browser‑chrome, mochitest)
• Public code review and version control in a large codebase
• Asynchronous written communication across time zones

Benefits

• Competitive contract compensation aligned with senior engineering rates.
• Fully remote work from anywhere in Canada.
• Opportunity to contribute to a widely used open‑source browser.
• Access to Mozilla’s internal tooling and AI‑assisted development resources.
• Flexible schedule to accommodate distributed team collaboration.