Staff Software Engineer, Firefox Enterprise
Mozilla · Remote (Europe)
New this week Posted 3 Nov 2026; checked 8 Nov 2026.
You’ll apply on Mozilla’s official site. Real employers never ask you to pay to apply. Why?
About the role
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 web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people.
The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.
About this team and role
The Firefox team is a community of engineers who care deeply about delivering the fastest, friendliest, most usable browser possible. We are responsible for making the things you see in the browser work securely, quickly, and well! The Enterprise team is a cross-disciplinary team in charge of improving and maintaining Firefox support for large Enterprise deployments. As part of the team, you will be responsible for all things related to services and infrastructure for our Enterprise products.
A Staff Software Engineer is the next level up from a Senior Software Engineer. At Mozilla this role can vary, but typically a staff engineer supports an engineering team, providing technical leadership, building cross-team relationships, and helping the team deliver on their objectives.
What You'll Do
Improve the ease of use and security of Firefox in large deployments by developing better administration and monitoring tools.
Improve Firefox functionality by better integration with remote services.
Assess what work supports the team and product roadmap and make insightful recommendations in regards to priorities.
Work with a geographically-distributed development team.
What You’ll Bring
8+ years of professional experience in software development.
Experience developing robust services according to modern best practices.
Strong software engineering fundamentals: modularity, abstraction, data structures, and algorithms.
Proficiency in Rust and JavaScript.
Proven understanding of database systems (SQL and/or non-relational databases).
You are an excellent communicator and have participated effectively on a distributed team.
You’re pragmatic about how to move things forward in specific timeframes including trade-offs and safeguards when implementing new functionality.
Curiosity and interest in learning new things.
Bonus Points
Front-end development experience.
Experience with kubernetes.
Experience with OIDC/OAuth2.
You have previously successfully contributed to an open source project.
What you’ll get
Generous performance-based bonus plans to all eligible employees - we share in our success as one team
Rich medical, dental, and vision coverage
Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
Quarterly all-company wellness days where everyone takes a pause together
Country specific holidays plus a day off for your birthday
Continued in Mozilla’s original posting ↗.
Get ready
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