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addons.mozilla.org (AMO) is the foundation of the Firefox add-ons ecosystem. It’s a showcase for developers to publish and grow their extensions, and a place of discovery for millions of users who customize Firefox to make it their own. Behind the scenes are the DevHub which enables developers to manage their extensions. To manage the ecosystem there are a series of reviewer tools and automated moderation systems. As a Staff 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.
Job Responsibility:
Plan and deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub
Partner with Engineering management to set Operations Engineering standards (SLOs, incident management, observability baselines)
Mentor engineers, sharing knowledge and delegating responsibilities to 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 leading and 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
Ability to work across teams and align stakeholders on engineering vision
Experience mentoring and supporting junior engineers
Commitment to our values: Welcoming differences, Being relationship-minded, Practicing responsible participation, Having grit
Nice to have:
Experience in Site Reliability Engineering
Exposure to cloud infrastructure (Google Cloud or similar)
Contributions to open source projects
Experience with policy-compliant ecosystem moderation tools
What we offer:
Generous performance-based bonus plans
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 (life/AD&D, disability, EAP, etc. - varies by country)
Flexible work environment
Industry-leading paid parental leave
Reimbursement for professional development (up to $3,000/year)
A work setup including the latest hardware and software of your choice