Staff Software Engineer enhancing the add-ons ecosystem for Mozilla, focusing on resilient system design and team collaboration. Delivering impactful features and improvements for global Firefox users.
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.
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
Benefits
Generous performance-based bonus plans to all eligible employees - we share in our success as one team
Rich medical, dental, and vision coverage
Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
Quarterly all-company wellness days where everyone takes a pause together
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)
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