Senior Product Security Engineer

• 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
• You’ll work closely with engineers, reviewers, developer relations, and Add-ons leadership to turn ideas into polished features, modernize the platform and its architecture, and see your work reach millions of people around the world
• 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
• Work on:
• Full stack development: React/TypeScript frontends, Django backend, MySQL datastore
• Platform reliability: deployments, monitoring, and incident response on Google Cloud
• Feature development: submission flows, trust and safety signals, DevHub and Reviewer tools modernization
• Ecosystem moderation: abuse report management, policy compliance, and ecosystem safety
• Open collaboration: We work in the open, with contributions from Mozilla staff and community members

Benefits

• Health and wellness: Mozilla covers medical, dental and vision plan premiums at 100% for U.S. and Canadian employees. Our offerings give you the options you need to manage your health — and your family’s — the way you want.
• Mental health: Mental health is as important as our physical health. That’s why Mozilla’s health benefits include therapy and coaching sessions to make sure our people have access to the care they need.
• Time away: With all of life’s demands, time away from work to disconnect and recharge is essential. In addition to country-specific holidays (12 in the U.S. and Canada), vacation and sick time start accruing right away (specifics vary by country). Everyone also takes a pause together on quarterly all-company wellness days, plus you get to celebrate the most personal holiday of all: your birthday.
• Parental leave: While Mozilla’s parental leave policies vary globally, our U.S. and Canadian-based employees can look forward to 26 weeks of paid leave for childbearing parents and 12 weeks of paid leave for non-childbearing parents.
• Financial: Mozilla is a private company, so our compensation isn’t tied to stock options or equity plans. Instead, we offer generous, performance-based bonus plans to all regular employees to underscore that we share in our success as one team. As for retirement savings for US and Canadian employees, Mozilla contributes a percentage of your eligible base salary each year to the 401(k) Plan/RRSP (regardless of whether you contribute or not), with 100% vesting.
• Learning and development: We’re big believers in learning by doing, and we also want to invest in your education and development beyond your role. Every employee is eligible for an annual professional development budget. Mozillians can put it toward technical or management training, certifications, conferences and more.
• Help when you need it: Life is full of surprises; that’s why it’s important to be prepared. Mozilla provides Life/AD&D and Short and Long Term Disability insurance (offerings may vary by locale) to ensure that you and your family will have a safety net in place should you ever need it.
• Plus a bit more: A few other benefits include a quarterly wellbeing stipend (to use on those things just for you), an employee referral bonus, internet reimbursement if you’re remote, and a budget for office essentials to make working remotely ergonomically comfortable.- Experience building modern web applications
• Adept at navigating ambiguity, exploring solutions, and shaping direction in new problem spaces
• Welcoming differences
• Strong collaboration and communication skills in a distributed team environment
• Commitment to our values:
• Practicing responsible participation
• Having grit
• Understanding of web security principles and practices
• Being relationship-minded
• Strong experience with Python/Django or similar backend frameworks
• Experience in building automated security systems
• Contributions to open source projects
• Experience with policy-compliant ecosystem moderation tools
• Exposure to cloud infrastructure (Google Cloud or similar)