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

Mozilla

Remote · location unlistedContractCAD 145–171K/yrPosted 1 day agoStill listed 1 day ago

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At a glance

Compensation
CAD 145–171K/yr
Location
Remote · location unlisted
Schedule
Contract
Work Authorization
Not specified

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Job overview

Mozilla's Web Conferencing team seeks a contract Front End Engineer to implement approved UX designs for screen, window, and tab sharing in Firefox, building accessible, localizable browser UI, collaborating with UX and QA, supporting partner testing, and delivering code through public review.

Skills & qualifications

RequiredNice to have

Skills

JavaScriptHTMLCSSAutomated UI TestingAsynchronous CommunicationPublic CollaborationFirefox Front-End ArchitectureCustom ElementsXULFluent LocalizationWebRTCgetDisplayMediaAccessibilityMozilla Test FrameworksAI ToolingOpen Source Environment Experience

Qualifications

4+ Years Production UI Development

Full job description

About the team and role

Mozilla's Web Conferencing team owns the media capture and sharing features that make Firefox work for video calls: screen, window, and tab capture, and the interface users interact with when they share content in Google Meet, Zoom, or Jitsi.

We're bringing a set of screensharing improvements to Firefox. The backend work is complete and the UX has been designed and approved. We're looking for a front-end engineer on a fixed-term contract to implement it and ship it.

What you'll do

  • Implement approved UX designs for Firefox's screen, window, and tab sharing experience, and see them through to release

  • Build browser UI that holds up in a large, widely used codebase: tested, accessible, and localizable

  • Work with UX on the cases a design didn't anticipate, and with QA on validating the result

  • Support partner testing against major web conferencing services

  • Land your work in mozilla-central through public code review on Phabricator

What you'll bring

  • 4+ years building production user interfaces with JavaScript, HTML, and CSS

  • Experience implementing an approved design faithfully, plus the judgment to flag it when the design meets a case it didn't anticipate

  • Ability to get productive quickly in a large, mature codebase you didn't write

  • Experience writing automated tests for user interfaces

  • Strong asynchronous written communication, since the team is distributed across timezones

  • Comfort working in public, since Bugzilla and Phabricator are open

Bonus qualifications

  • Prior contributions to Firefox or another open-source browser

  • Familiarity with Firefox front-end architecture: browser/, custom elements, XUL, Fluent localization

  • Experience with WebRTC or getDisplayMedia

  • Accessibility experience with modal dialogs and list navigation

  • Experience with Mozilla's test frameworks (browser-chrome, mochitest)

  • Experience using AI tooling effectively in front-end development

  • Open source environment experience

Hiring Ranges:

Canada Tier 1 Locations $145,000—$170,800 CAD

Canada Tier 2 Locations $154,000—$168,000 USD

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