Key skills
JavaScriptOpen SourcePythonRustC++CCommunicationCollaboration
About this role
Role Overview
- Contribute to the development of Python and JavaScript libraries (such as moz-l10n) and tools that support Mozilla’s localization infrastructure.
- Improve localization and internationalization within the Firefox codebase to make features more adaptable and accessible across languages and regions.
- Collaborate with engineers and program managers to design and implement new Pontoon features.
- Engage with our community of volunteer developers and localizers to support and guide Mozilla’s localization efforts.
- Collaborate effectively with teammates and internal clients across regions and time zones.
Requirements
- Strong experience developing and maintaining libraries and tools using Python and JavaScript.
- Solid understanding of web technologies, APIs, and modern development workflows.
- Experience with open source development practices and community collaboration.
- Ability to collaborate effectively in a distributed team, across time zones and disciplines.
- Excellent communication skills, with an emphasis on clarity and working across technical and non-technical roles.
- Professional fluency in English (written and verbal).
- Commitment to our values:
- Welcoming differences
- Being relationship-minded
- Practicing responsible participation
- Having grit
- Bonus points:
- Experience with internationalization (i18n) and localization (l10n) concepts, tools, or workflows.
- Programming experience in Rust and C++.
- Fluency in another language and understanding of linguistic diversity (e.g., grammar, plurals, text direction, and cultural conventions).
Tech Stack
- JavaScript
- Open Source
- Python
- Rust
Benefits
- 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
- One-time home office stipend
- Annual professional development budget
- Quarterly well-being stipend
- Considerable paid parental leave
- Employee referral bonus program
- Other benefits (life/AD&D, disability, EAP, etc.
- varies by country)