Senior Software Frontend Development Engineer

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. And we’re doing this while never losing our focus on our core mission – to make the internet better for people.

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.

We’re a distributed team based in North America and Europe, supporting both internal Mozilla engineers and the broader web developer community through tools like the Firefox Profiler.

This includes implementing interactive performance visualizations, handling large-scale performance data efficiently in the browser, and improving usability for engineers across Mozilla. You will collaborate with systems engineers, browser developers, and other teams working on performance.

Design and develop modern, interactive UI components for the Firefox Profiler using TypeScript, React, Redux, and related web technologies.

Build high-performance, scalable, accessible, and maintainable user interfaces that visualize complex performance data.

Engage with other Firefox engineers to help them learn how to use our tools efficiently, and develop projects to serve them better.

5+ years of experience in JavaScript/TypeScript, React, Redux, and browser-based UI development.

• A strong background in building complex, interactive UIs that manage large data sets efficiently.
• Knowledge of frontend testing frameworks (e.g., Generous performance-based bonus plans to all eligible employees - we share in our success as one team

Rich medical, dental, and vision coverage

One-time home office stipend

Annual professional development budget

Considerable paid parental leave

Employee referral bonus program

Other benefits (life/AD&D, disability, EAP, etc. - About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. LI-REMOTE

Remote Germany

€