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

Mozilla · contract · posted 24 Sep

You came here asking one thing. Salary?

$$$ → ✓

$154,000 to $168,000 per year

Second question — can you apply from where you sit?

Open to Canada

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The actual job

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

Mozilla

Seniority: Staff
Top skills: JavaScript
Engagement: Contract
Posted: about 16 hours ago

What the posting asks for

4 years of experience
JavaScript
HTML
CSS
Automated testing

Fine, I'm applying →

NOT for me!!

What made it a no?

location salary seniority stack

Employer text

The posting, in its own words

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