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Mozilla, headquartered in Rincon Hill, San Francisco, CA, is a prominent player in the internet software industry, best known for its flagship product, Firefox. With over 1,000 employees, Mozilla focuses on open-source software and privacy-forward solutions, including Mozilla VPN. The company has ra...
Mozilla offers 26 weeks of paid parental leave for childbearing parents and 12 weeks for non-childbearing parents. Employees receive 100% coverage for...
Mozilla champions an open-source culture, prioritizing user privacy and choice. The company fosters a mission-driven environment, focusing on impactfu...

Mozilla • Remote Netherlands
Mozilla is hiring a Senior Software Engineer to enhance the Firefox add-ons ecosystem. You'll collaborate with designers and product managers to create polished features and modernize the platform. This role requires strong skills in JavaScript and React.
You have 5+ years of software engineering experience, particularly in building and maintaining web applications. Your expertise in JavaScript and frameworks like React allows you to craft beautiful, accessible user experiences that resonate with millions of users. You understand the importance of collaboration and have worked closely with designers and product managers to turn ideas into polished features. You are passionate about open-source software and have a strong commitment to creating a better internet for everyone.
You thrive in a remote work environment and are comfortable using various collaboration tools to communicate effectively with your team. You have a keen eye for detail and a strong understanding of web security principles, ensuring that the applications you build are not only functional but also secure and trustworthy. You are proactive in seeking feedback and continuously improving your skills and the products you work on.
Experience with backend technologies and APIs is a plus, as it allows you to understand the full stack of the applications you work on. Familiarity with the Firefox ecosystem or similar open-source projects would be beneficial. You are open to learning new technologies and adapting to the evolving landscape of web development.
As a Senior Software Engineer at Mozilla, you will play a crucial role in enhancing the Firefox add-ons ecosystem. You will work closely with a team of talented engineers, designers, and product managers to develop and implement new features that improve user experience. Your responsibilities will include writing clean, maintainable code, conducting code reviews, and mentoring junior engineers to help them grow in their roles.
You will be involved in the entire development lifecycle, from brainstorming and designing new features to deploying and monitoring them in production. You will also collaborate with the security team to ensure that the applications you build adhere to best practices and are resilient against potential threats. Your contributions will directly impact the way millions of users interact with Firefox and its add-ons, making the internet a better place for everyone.
Mozilla offers a competitive salary range of €65,000—€95,000 EUR, along with a comprehensive benefits package that includes health insurance, retirement plans, and generous paid time off. You will have the opportunity to work in a mission-driven organization that values diversity and inclusion, and you will be part of a team that is dedicated to making a positive impact on the internet.
We encourage you to apply even if your experience doesn't match every requirement. At Mozilla, we believe that diverse teams build better products, and we are committed to fostering an inclusive environment where everyone can thrive. Join us in shaping the future of the internet and making it a better place for all.
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