Senior Software Engineer (Localization)

Remote
Posted 4 weeks ago
Expires June 17, 2026
Full TimeRemoteEngineeringProduct

The Senior Software Engineer (Localization) role at Mozilla involves contributing to the development and maintenance of localization infrastructure across Mozilla's products and services. The position is part of the Localization Team, which manages tools like Pontoon, a Django-based Translation Management System, and open-source libraries such as moz-l10n. Mozilla, known for pioneering products like Firefox, is committed to creating an internet that prioritizes user privacy and accessibility.

Key responsibilities include developing Python and JavaScript libraries to support localization efforts, enhancing internationalization features within the Firefox codebase, and collaborating with engineers and program managers to design and implement new features in Pontoon. The role also involves engaging with a global community of volunteer developers and localizers to support Mozilla's localization initiatives.

Candidates should have strong experience in developing and maintaining libraries and tools using Python and JavaScript, a solid understanding of web technologies and APIs, and familiarity with open-source development practices. Effective collaboration in a distributed team across various time zones and disciplines is essential, along with excellent communication skills. Professional fluency in English is required.

Mozilla offers generous performance-based bonus plans, comprehensive medical, dental, and vision coverage, and substantial retirement contributions with immediate vesting. Additional benefits include quarterly company-wide wellness days, country-specific holidays plus a day off for birthdays, a one-time home office stipend, an annual professional development budget, and considerable paid parental leave.

Joining Mozilla means becoming part of a mission-driven organization dedicated to building an open and accessible internet. The company values diversity, equity, inclusion, and belonging, encouraging applications from individuals of all backgrounds. Employees have the opportunity to make a meaningful impact on the web and contribute to innovative projects that prioritize user privacy and accessibility.

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