Senior Software Engineer

💼 Full-time🗓 2026-09-15 → 2026-09-30

Core

Build and own back-end systems and integrations for Mozilla's ecosystem services, ensuring reliability and health in production.

Role type

Senior Software Engineer (Backend)

Builds

Distributed back-end platforms powering Mozilla products like Firefox, including Privacy Services, AutoPush, and Remote Settings.

Domain

Internet technology, open-source software, cloud infrastructure

Required skills

Python, TypeScript/Node.js, Rust, PostgreSQL, SQL query optimization, Google Cloud Platform (GCP), Docker, observability tooling (Sentry, Grafana)

Preferred skills

AI-assisted development tools, security and privacy review expertise

Responsibilities

Lead backend development and maintain server-side logic, deploy and operate services end-to-end, manage on-call rotation for production issues, handle releases and dependency updates, conduct code reviews, participate in security and privacy reviews

Seniority

Senior, hands-on IC

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About Mozilla

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.