Front End Engineering Manager, Firefox Desktop

About the role

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)(3) 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.

This role is for a Frontend Engineering Manager, Firefox Desktop. You will lead a distributed team of frontend engineers focused on advancing the Firefox Desktop user experience. You will own the strategy and execution of initiatives that enhance the browser interface and drive measurable value for users. This role requires you to balance rapid delivery with thoughtful, long-term architectural thinking. You will communicate clear goals, risks, and timelines while ensuring high quality, maintainable, and monitored software. You will build and iterate on engineering processes that empower a high-performing, autonomous team.

What you'll do

• Drive initiatives to deliver value to users ensuring the software your team delivers is high quality, highly available, monitored, and maintainable.
• Help the team navigate trade-offs and drive alignment in a fast-paced field; balancing quick delivery with thoughtful, long-term approaches across a portfolio of user experiences in the browser.
• Communicate your team's goals, the scope and risks of your projects, and own the delivery of initiatives on clear timelines.
• Identify, build and iterate on engineering processes that support a high performing team.
• Engage regularly 1-1 with your team to discuss both technical work and professional development; provide direct and honest feedback about their individual performances.
• Ensure developers are properly supported and empowered throughout the developer lifecycle.
• Partner with product managers, designers, and other stakeholders to define and prioritize work that advances the Firefox Desktop experience.
• Analyze metrics and user feedback to inform priorities and validate that your team's work improves the real-world browser experience.
• Mentor engineers, foster a culture of code quality, and uphold best practices in security, performance, and accessibility.
• Influence how the world uses the internet by leading a team dedicated to making the internet better for people.
• Work in an open source culture, contributing to the codebase that powers Firefox on Windows, Linux, and macOS.
• Help remove obstacles that slow down the team, and create an environment where engineers can do their best work.
• Translate complex technical constraints into clear plans and communicate progress to both technical and non-technical audiences.
• Continuously assess tooling and workflows to improve the efficiency and happiness of your team.

Requirements

• Bachelor's degree or equivalent practical experience.
• 5+ years of software engineering experience, with at least 3 years in a frontend role.
• 3+ years of experience managing a team of engineers.
• Demonstrated experience delivering complex user interfaces in a web browser.
• Strong knowledge of HTML, CSS, and JavaScript/TypeScript.
• Experience with modern frontend build tools and version control workflows.
• Familiarity with Firefox architecture and open source development practices.
• Proven ability to communicate clearly and lead through influence.

Nice to have

• Experience with privacy-focused products and user data protection.
• Background in performance optimization and accessibility.
• Contributions to large-scale open source projects.
• Experience mentoring engineers through career growth stages.

Practical notes

This is a full-time remote role. Travel is not required. Visa sponsorship may be considered for eligible candidates. Please apply through the provided link to see location-specific hiring ranges and deadlines.