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Senior Software Engineer - Engineering Workflow and CI

Mozilla | , , united kingdom, United-Kingdom | Posted May 31, 2026

Position Overview

What You’ll Do

  • Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows
  • Work with a geographically-distributed development team
  • Mentor other team members and be mentored by more senior team members
  • Collaborate with other teams by providing code review and technical direction
  • Look at data, make dashboards, identify trends in Firefox development workflow

What You’ll Bring

  • Proven Python skills, including building services
  • Front-end development experience, including JavaScript proficiency
  • Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform, familiar ...

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