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

Nice to Haves

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).

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.

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)