Senior Security Engineer – Add-ons Operations

Posted last week

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About the role

  • Senior Software Engineer focused on improving the Add-ons ecosystem at Mozilla. Collaborating with cross-functional teams to enhance the reviewed and operations experience for developers.

Responsibilities

  • Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub.
  • Create robust observability systems and data-backed insights.
  • Provide peer feedback, share knowledge and help others grow.
  • Improve platform reliability through deployments, monitoring, and incident response.
  • Help keep the platform safe and trustworthy, with attention to security and user trust.
  • Step in to resolve issues impacting users and developers, from small bugs to larger incidents.
  • Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements.
  • Contribute in the open through pull requests, code reviews, and discussions.

Requirements

  • Experience building modern web applications.
  • Strong experience with Python/Django or similar backend frameworks.
  • Understanding of web security principles and practices.
  • Strong collaboration and communication skills in a distributed team environment.
  • Adept at navigating ambiguity, exploring solutions, and shaping direction in new problem spaces.
  • Commitment to our values:
  • Welcoming differences
  • Being relationship-minded
  • Practicing responsible participation
  • Having grit
  • Bonus points for:
  • Experience in building automated security systems.
  • Exposure to cloud infrastructure (Google Cloud or similar).
  • Contributions to open source projects.
  • Experience with policy-compliant ecosystem moderation tools.

Benefits

  • Generous performance-based bonus plans to all eligible employees - we share in our success as one team
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-company wellness days where everyone takes a pause together
  • Country specific holidays plus a day off for your birthday
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)

Job type

Full Time

Experience level

Senior

Salary

Not specified

Degree requirement

No Education Requirement

Tech skills

CloudDjangoOpen SourcePython

Location requirements

RemoteCanada

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