Senior security engineer, cyber security engineer, senior cyber security, senior cyber engineer

Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.

As a Senior Software Engineer - Operations, you’ll bring a passion for crafting resilient systems that accelerate our review and operations team to provide a first-class experience for Add-on developers. Responsibilities include:

• 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.
• Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements.
• Full stack development: React/TypeScript frontends, Django backend, MySQL datastore.
• Platform reliability: deployments, monitoring, and incident response on Google Cloud.
• Ecosystem moderation: abuse report management, policy compliance, and ecosystem safety.

We work in the open, with contributions from Mozilla staff and community members. Experience building modern web applications is required, along with strong experience with Python/Django or similar backend frameworks. Understanding of web security principles and practices is essential.

Bonus points for:

• Experience in building automated security systems.
• Contributions to open source projects.
• Experience with policy-compliant ecosystem moderation tools.

We offer generous performance-based bonus plans to all eligible employees, rich medical, dental, and vision coverage, generous retirement contributions with 100% immediate vesting, country specific holidays plus a day off for your birthday, a one-time home office stipend, an annual professional development budget, considerable paid parental leave, and an employee referral bonus program.

When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

Commitment to diversity, equity, inclusion, and belonging is fundamental at Mozilla. We encourage applications from everyone, including members of all equity-seeking communities. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate.

We do not discriminate on the basis of race, religion, gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws.

Remote UK