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Senior Security Engineer, Add-ons Operations

1 month, 2 weeks ago
United Kingdom
Full-time
Senior
Security Engineer
Cybersecurity
Django GCP MySQL Python React TypeScript
Apply Now
Mozilla

Mozilla

Mozilla, the maker of Firefox, is a non-profit organization ensuring an open, safe, and accessible internet for all users worldwide.

Internet Software & Services
251-1K
Founded 2005
$2M raised
View All Jobs 29

Description

  • 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.
  • Improve platform reliability through deployments, monitoring, and incident response.
  • Help keep the platform safe and trustworthy with attention to security and user trust.
  • 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.
  • Work on full-stack development across React/TypeScript frontends, Django backend, and MySQL datastore.
  • Support ecosystem moderation, including abuse report management, policy compliance, and ecosystem safety.
  • Provide peer feedback, share knowledge, and help others grow.

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.
  • Ability to navigate ambiguity, explore solutions, and shape direction in new problem spaces.
  • Commitment to Mozilla values, including welcoming differences, being relationship-minded, practicing responsible participation, and having grit.
  • Experience building automated security systems (bonus points).
  • Exposure to cloud infrastructure such as Google Cloud (bonus points).
  • Contributions to open source projects (bonus points).
  • Experience with policy-compliant ecosystem moderation tools (bonus points).
  • Remote UK hiring range: £65,000 to £87,000 GBP.

Benefits

  • Generous performance-based bonus plans for eligible employees.
  • Rich medical, dental, and vision coverage.
  • Generous retirement contributions with 100% immediate vesting.
  • Quarterly all-company wellness days.
  • 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 such as life/AD&D, disability, and EAP, depending on country.

Interested in this position?

Apply directly on the company website

Apply Now

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