Senior Software Engineer

 

Description:

Firefox developers land code every day to delight users with new features and improve product performance and security. Every day, developers and managers use our team’s applications to develop, build, test, and deliver Mozilla’s core products. We are force-multipliers to enable Firefox developers to do their best work.

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 with at least 2 of: Windows, Linux, Mac, Android
  • A passion for enhancing developer productivity
  • Commitment to our values:
    • Welcoming differences
    • Being relationship-minded
    • Practicing responsible participation
    • Having grit

Organization Mozilla
Industry IT / Telecom / Software Jobs
Occupational Category Senior Software Engineer
Job Location London,UK
Shift Type Morning
Job Type Full Time
Gender No Preference
Career Level Intermediate
Experience 2 Years
Posted at 2026-04-21 8:33 pm
Expires on 2026-06-05