Jobs at Mozilla

Contract Software Engineer - WebCompat Tooling (Dashboards and Reporting), Firefox

Mozilla | Remote (Canada, France, Germany, UK) | 🌍 Remote

Contract | Published on 26 Sep 2026

The role You will build and improve the WebCompat team’s internal tooling, the dashboards and the broken-site-report screenshot pipeline the team relies on to triage and prioritize site breakage. This …

Marketing Data Science Manager

Mozilla | Remote (Canada, UK) | 🌍 Remote

Full-time | Published on 26 Sep 2026

To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. …

Contract Software Engineer - DOM Core Firefox/Gecko

Mozilla | Remote (France, Germany, UK) | 🌍 Remote

Contract | Published on 26 Sep 2026

The role You will help the Firefox DOM Core team improve the health of the Session History area. You will write tests to improve the coverage; you will fix tests …

Senior Software Engineer, Add-Ons

Mozilla | Remote (Finland) | 🌍 Remote

Full-time | Published on 23 Sep 2026

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded …

Major Gifts Officer

Mozilla | Remote (Canada, Germany, UK, USA) | 🌍 Remote

Full-time | Published on 19 Sep 2026

Mozilla Foundation is a non-profit building a better technology future — powered by people, open by design, fueled by imagination. We deliver people-first alternatives to today’s extractive systems. We build …