Mozilla
Senior Software Engineer, OS Integration
Canada, UK, Europe
UTC-8 to UTC+2 $49k to $110k per year Full time
Senior
- Where you can live
- Remote Canada · Remote Finland · Remote France · Remote Germany · Remote Belgium · Remote Spain · Remote Netherlands · Remote Sweden and 1 more
- Working hours
- Overlap with UTC-8 to UTC+2
- Salary
- EUR 45,000 to 60,000 per year
- Posted
- November 11, 2026
Summary from the posting
As a member of the OS Integration team, you’ll develop fixes, improvements, and new features for Firefox. In many cases work may be cross-platform or have a cross-platform component. This role will include maintenance and development of the installer and updater of Firefox. You’ll contribute to the team through code review and discussion.
What you’ll do:
- Improve the quality of Firefox and other Mozilla products by debugging and fixing software defects, improving the browsing experience for hundreds of millions of users.
- Contribute to new features and improvements.
- Break down tasks and work with others to deliver solutions.
- Collaborate with experienced software engineers.
This is a short summary. The full description, requirements and the application form are on Mozilla's own career page.