Staff Software Engineer, Add-on Operations

Core responsibilities:

• 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

This role helps maintain and improve the Firefox add-ons ecosystem, enabling millions of users to customize their browsing experience while ensuring platform safety and trustworthiness, contributing to Mozilla's mission of building an open and accessible internet for all.

Required skills and experience:

• 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

Compensation and benefits:

• 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 birthday day off
• 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.)