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Job · Senior

Senior Software Engineer - Engineering Workflow and CI

Backend Developer • Senior • Remote • Full-time • 📍 Remote Spain

Join Mozilla's team that builds the applications Firefox developers use every day to develop, build, test, and deliver Mozilla's core products. As a senior engineer you act as a force-multiplier, improving development workflows and CI to reduce testing and debugging time. The role combines Python service-building, front-end work, and data-driven workflow analysis within a geographically distributed team.

Responsibilities

  • Improve Firefox development workflows to reduce time spent testing and debugging test failures
  • Increase integration and automation of development workflows
  • Mentor team members and collaborate by providing code review and technical direction
  • Work with a geographically distributed development team
  • Analyze data, build dashboards, and identify trends in Firefox development workflows

Requirements

  • Proven Python skills, including building services
  • Front-end development experience with JavaScript proficiency
  • Experience with Python frameworks (FastAPI, Flask, Django), cloud services (GCP, AWS) and REST
  • Solid understanding of databases and SQL
  • Experience with CI/CD systems (GitHub Actions, CircleCI) and test harnesses
  • Comfortable working cross-platform on at least 2 of Windows, Linux, Mac, Android

Nice to have

  • Deep understanding of version control systems
  • Experience with containerization and continuous delivery/deployment, particularly Docker
  • Experience with CI of large-scale projects
  • Comfortable with data analysis

Soft skills

Passion for enhancing developer productivityMentoring and collaborationWelcoming differences and being relationship-mindedResponsible participation and grit

What we offer

  • Generous performance-based bonus plans
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days and a day off for your birthday
  • One-time home office stipend and annual professional development budget
  • Considerable paid parental leave and employee referral bonus program
Languages: angol