Job description
Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. More than 225 million people around the world use our products each month. The Mozilla Corporation is wholly owned by the non-profit Mozilla Foundation, so we aren't beholden to any shareholders, only to our mission. As a Senior Software Engineer on the Ecosystem Services Team, you'll build and own back-end systems and the integrations that keep our services running, help maintain and evolve the cloud infrastructure the application runs on, and play an active role in keeping the service reliable and healthy in production. Ecosystem Services builds and operates the back-end platforms that power Mozilla products and services, with a focus on privacy, security, and delivering critical functionality to Firefox and millions of users worldwide. What you'll do: - Lead backend development, building and maintaining server-side logic. - Take real ownership of the services you work on: deploy them, operate them, and keep them healthy in production. - Work closely with our CloudEng Team to maintain and improve production environments, including monitoring and alerting with OpenTelemetry, Sentry, Prometheus, and Grafana. - Participate in an on-call / off-hours support rotation, triaging and resolving production issues. - Periodically rotate into a support role, handling releases, dependency updates, and incoming work requests. - Thoughtfully apply AI-assisted development tools to move faster and raise quality. - Partner with frontend and cross-functional teams to align on project goals and contribute to API design. - Participate in code reviews and in security and privacy reviews.
Requirements
- 4+ years of experience in software development with a strong focus on backend technologies. - Strong professional experience with Python, TypeScript/Node.js, or Rust building back-end services. - Proficiency with PostgreSQL and SQL query optimization, relational schema design and migrations with a query builder such as Knex. - Hands-on DevOps experience on Google Cloud Platform (GCP), with Docker-based build and deploy pipelines. - Hands-on experience with observability and monitoring tooling such as Sentry and Grafana. - A pragmatic commitment to shipping quality work and strong engineering judgment. - A genuine ownership mindset, including experience with on-call or off-hours production support. - Experience mentoring junior engineers.