Full-time

Senior Full-Stack Engineer, Email Systems

Posted by Mozilla • Toronto, Ontario, Canada

📍 Toronto, Ontario 🕒 February 25, 2026

About the Role

The Opportunity

:

As a Senior Software Engineer, Web Services, you’ll contribute to a whole new suite of communication tools including end-to-end encrypted file sharing, an email service, an appointment booking service, and more. You’ll join the Web Services Team, which is responsible for building and maintaining the accounts and email services that power these offerings.


The ideal candidate will have a strong focus on web development, infrastructure, and service architecture. This person has direct experience with email delivery, is autonomous, and can lead feature development from an ambiguous project statement to a concrete plan and implementation. You are passionate about delivering quality to customers and naturally think about products from the user’s perspective, always seeking ways to improve and elevate the experience.


You’ll work closely with designers, engineers, and community members to develop and maintain user-facing featu...

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