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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer, Add-Ons - **Company:** Mozilla Corporation - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Cloud Computing, Code Review, Data Stores, Django Web Framework, Data Intelligence, Python (Programming Language), MySQL, Web Application Security, TypeScript, Google Cloud, ReactJS, System Availability, Backend, Free and Open-Source Software, Front End Software Development - **Published:** September 23, 2026 - **Apply:** https://job-boards.greenhouse.io/mozilla/jobs/7524337 ## About the Role * 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. * Commitment to our values: * Welcoming differences * Being relationship-minded * Practicing responsible participation * Having grit Bonus points for: * Experience in building automated security systems. * Exposure to cloud infrastructure (Google Cloud or similar). * Contributions to open source projects. * Experience with policy-compliant ecosystem moderation tools. ## Description 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. What you'll do: * 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. ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Coffee with Developers](https://www.wearedevelopers.com/videos/354-coffee-with-developers) - [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) - [WeAreDevelopers LIVE: Scammer Payback with Python, Grok Goes Unhinged, The Future of Chromium and mo](https://www.wearedevelopers.com/videos/1288-wearedevelopers-live-scammer-payback-with-python-grok-goes-unhinged-the-future-of-chromium-and-mo) ## Related Articles - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Dev Digest 131 - AI'm not sure about OSS](https://www.wearedevelopers.com/magazine/472-dev-digest-131-ai-m-not-sure-about-oss) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 129 - Now that's what I call private data!](https://www.wearedevelopers.com/magazine/468-dev-digest-129-now-that-s-what-i-call-private-data) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 119 - ❤️ === ❤️](https://www.wearedevelopers.com/magazine/454-dev-digest-119)