Firefox OS Integration: Windows Senior Software Engineer
Mozilla
About this role
A software engineering role on Mozilla’s OS Integration team focused on the Windows platform. The team ensures Firefox and other Gecko-based products integrate smoothly with host operating systems and contributes to cross-platform platform work across macOS, Linux, and Android. The role is part of a distributed engineering organization aligned with Mozilla’s mission to build an open, user-first internet.
Skills
Qualifications
About Mozilla
mozilla.orgMozilla is a global non‑profit organization dedicated to keeping the internet open, secure, and under people’s control — summed up by its motto “Internet for people, not profit.” It builds open‑source products like the Firefox browser and privacy‑focused tools, and conducts research, advocacy, and standards work to promote user privacy, competition, and a healthy web ecosystem. Mozilla’s work is sustained by a global community of contributors, partnerships, donations, and a mix of mission‑driven ventures, with opportunities to join or contribute through careers and volunteer programs.
Recent company news
The Mozilla BlogMozilla’s next chapter: Building the world’s most trusted software company
Dec 16, 2025
TechSpotMozilla says Claude AI uncovered over 100 Firefox bugs in just two weeks, including 14 high-severity flaws
5 days ago
CNBCMozilla is building an AI ‘rebel alliance’ to take on industry heavyweights OpenAI, Anthropic
1 month ago
MashableLove Pocket? Mozilla just bought the app to fix its mobile problem.
1 week ago
The RegisterMozilla Corporation installs Firefox driver in CEO reboot
Dec 16, 2025
About Mozilla
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Leadership Team
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
Unlock Company Insights
View leadership team, funding history,
and employee contacts for Mozilla.
Salary
$69k – $104k
per year
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