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

Jobicy JobID: 154034

Job Tags

Full time, Contract work, Fixed term contract

Similar Jobs

Amazon

Applied Scientist, Device Team, AWS Center for Quantum Computing Job at Amazon

...learn, innovate, carry out agile and yet scientifically rigorous research, and disseminate findings to the rest of the organization. You... ...federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some...

Collider Inc

Books & Literature Writer Job at Collider Inc

Freelance Books Writer This is a paid freelance, remote position. Collider is the leading source for impactful entertainment coverage, serving millions of readers with smart, authoritative stories on the biggest movies, TV shows, streaming hits, cult classics, and everything...

NewsBreak

Business Development Intern (MBA), Home Services Job at NewsBreak

...Business Development Intern (MBA), Home Services Mountain View, California, United States About the Role We're looking for an MBA-level Business Development & Strategy Intern to own a merchant-acquisition initiative end-to-end from market research and territory...

GovernmentJobs.com

Events Assistant Job at GovernmentJobs.com

...invite you to read on! Description Our Events team is seeking enthusiastic and... ...individuals to join their team as Part-Time Assistants! You'll be assisting with the setup,... ...will vary based on event schedules and planning. Examples Of Duties Assist with...

United States Government

IT Product Manager (Detail Opportunity) Job at United States Government

Agency: Department of Homeland Security HeadquartersDepartment: Department of Homeland SecuritySalary: Starting at $121,785 Per year (GS 13-14)Dates: Open 06/04/2026 to 12/03/2026Schedule: Full-timeWork type: DetailRelocation: FalsePosition ID: JDP-12977884-26-DJDocument...

Remote Contract Staff Front End Engineer (Web Conference/Screen Sharing) Job at Mozilla, Remote