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MozillaPosted 4 weeks ago

Senior Backend Engineer, Ecosystems

RemoteCanada

Part TimeSenior LevelAssociates DegreeMediumDigital Media Services

Job Summary

Lead backend development for Ecosystem Services, owning server-side logic, deployment, and production health for platforms powering Firefox, VPN, Relay, and AutoPush. Deploy and operate services end-to-end on Google Cloud Platform, maintaining environments with Docker pipelines and monitoring via OpenTelemetry, Sentry, Prometheus, and Grafana. Participate in on-call rotations to triage production incidents, handle releases, and address dependency updates while collaborating with frontend teams, CloudEng, and UX partners. Apply AI-assisted development tools to accelerate quality, conduct security and privacy reviews, and mentor junior engineers to drive technical excellence across distributed systems.

Required Qualifications

  • 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 and confidence leading back-end engineering projects
  • Proficiency with PostgreSQL and SQL query optimization, including 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
  • Strong engineering judgment
  • A genuine ownership mindset
  • Experience mentoring junior engineers and driving technical excellence in code quality, testing, and process improvements

Desired Qualifications

  • Bonus Points for experience with: Performance / load testing
  • Experience with IaC tools such as Terraform and Kubernetes
  • Open-source contributions or personal engineering projects
  • Django experience

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