Frontend Engineering Team Lead - MarTech
Sporty Group
Contract Staff Front End Engineer (Web Conference/Screen Sharing)
mozilla· Firefox
About this role
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
Frequently Asked Questions
Is the salary disclosed for the Contract Staff Front End Engineer (Web Conference/Screen Sharing) position at mozilla?
The salary for this Contract Staff Front End Engineer (Web Conference/Screen Sharing) role at mozilla is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the Contract Staff Front End Engineer (Web Conference/Screen Sharing) job at mozilla remote?
Yes, this Contract Staff Front End Engineer (Web Conference/Screen Sharing) position at mozilla is remote, with team members based in Remote Canada. You can work from home or anywhere in the supported regions.
Which team or department does the Contract Staff Front End Engineer (Web Conference/Screen Sharing) at mozilla belong to?
This Contract Staff Front End Engineer (Web Conference/Screen Sharing) position is part of the Firefox department at mozilla. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Contract Staff Front End Engineer (Web Conference/Screen Sharing) position at mozilla?
Click the "Apply Now" button on this page. You will be redirected to mozilla's official application portal hosted on greenhouse where you can submit your application directly.
When was the Contract Staff Front End Engineer (Web Conference/Screen Sharing) job at mozilla posted?
This Contract Staff Front End Engineer (Web Conference/Screen Sharing) position at mozilla was posted on Sep 22, 2026. Apply as soon as possible — early applications are often reviewed first.
Contract Staff Front End Engineer (Web Conference/Screen Sharing)
mozilla
You'll be redirected to mozilla's official application page on Greenhouse.