Senior Software Engineer, Add-Ons

<div class="gmail_default" style="font-size: small;"> <div> <p><strong>Why Mozilla?</strong></p> <p><span style="font-weight: 400;">Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people.</span><span style="font-weight: 400;"><br></span><span style="font-weight: 400;"> The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.</span></p> <p><strong>About this team and role:</strong></p> <p><span style="font-weight: 400;">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.&nbsp;</span></p> <p><span style="font-weight: 400;">As a Senior Software Engineer, you’ll bring a passion for crafting resilient systems that accelerate our review and moderation teams to provide a first-class experience for Add-on developers. You’ll work closely with engineers, reviewers, developer support, 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.</span></p> <br><strong>What you’ll do:&nbsp;</strong> <ul> <li style="font-weight: 400;"><span style="font-weight: 400;">Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Help establish and maintain engineering standards across areas such as code review, definition of done, production readiness, runbooks, incident response, on-call practices, coding conventions, and infrastructure as code.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Create robust observability systems and data-backed insights.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Provide peer feedback, share knowledge and help others grow.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Build and improve the systems that enable Add-ons engineering to safely develop, deploy, observe, and operate production services.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Improve our CI/CD pipelines using declarative, pipeline-as-code approaches that make changes reproducible, testable, and easy to review.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Deliver work iteratively using a visible backlog, short feedback cycles, retrospectives, and demonstrations to stakeholders.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Write clear technical documentation, including design notes, Architecture Decision Records, runbooks, and incident write-ups.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Work effectively in unfamiliar codebases, tracing requests and asynchronous jobs end-to-end to understand failures and identify opportunities for improvement.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Contribute in the open through pull requests, code reviews, and discussions.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Work on:</span><br> <ul> <li style="font-weight: 400;"><strong>Feature development:</strong><span style="font-weight: 400;"> submission flows, trust and safety signals, DevHub and Reviewer tools modernization.</span></li> <li style="font-weight: 400;"><strong>AMO application systems: </strong><span style="font-weight: 400;">Work within our Python/Django, MySQL, React/TypeScript, and asynchronous processing systems.</span></li> <li style="font-weight: 400;"><strong>Internal developer platforms</strong><span style="font-weight: 400;">: Create tools and paved paths that make it easier for teams to ship and operate software safely and consistently.</span></li> <li style="font-weight: 400;"><strong>Team Process: </strong><span style="font-weight: 400;">Contribute to team ceremonies, execute process improvement, and provide feedback on team effectiveness.&nbsp;</span></li> <li style="font-weight: 400;"><strong>Engineering standards</strong><span style="font-weight: 400;">: Help make production readiness, testing, recoverability, documentation, and safe deployment part of the normal development lifecycle.&nbsp;</span></li> <li style="font-weight: 400;"><strong>Platform reliability:</strong><span style="font-weight: 400;"> Deployments, monitoring, and incident response.</span></li> </ul> </li> </ul> <p><strong>What you’ll bring:&nbsp;</strong></p> <ul> <li style="font-weight: 400;"><span style="font-weight: 400;">Strong hands-on experience building and maintaining production applications with Python/Django.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience operating and improving production software systems where reliability and safe delivery matter.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Strong experience with CI/CD systems and treating pipelines and infrastructure declaratively as code.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience designing or improving automated testing and deployment workflows, including integration testing and staged or progressive delivery.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Strong understanding of observability as an engineering discipline, including metrics, logging, tracing, service-level objectives, and actionable alerting.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience building or maintaining internal tools or platforms used by other engineering teams, with an understanding that internal systems have users, reliability expectations, roadmaps, and lifecycle considerations.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience defining or improving engineering practices such as code review standards, operational readiness, runbooks, incident response, on-call expectations, or definitions of done.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Ability to read and understand unfamiliar codebases and trace application behavior across frontend, backend, asynchronous jobs, data stores, and infrastructure.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience debugging complex production issues and turning what you learn into lasting system improvements.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Strong technical writing skills, with experience creating useful documentation such as design documents, ADRs, runbooks, and incident reports.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience working iteratively with a visible backlog, regular stakeholder feedback, and retrospectives that result in concrete improvements.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Strong collaboration and communication skills in a distributed team environment.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">A willingness to share knowledge and mentor peers in operational and reliability practices.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Commitment to our values:</span> <ul> <li style="font-weight: 400;"><span style="font-weight: 400;">Welcoming differences</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Being relationship-minded</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Practicing responsible participation</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Having grit</span></li> </ul> </li> </ul> <p><strong>Bonus points for:</strong></p> <ul> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience with Google Cloud and operating Kubernetes.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience with infrastructure-as-code tooling and policy-as-code.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience establishing SLOs and error-budget-based reliability practices.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience with chaos engineering, disaster recovery testing, or production readiness reviews.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Experience with trust and safety, automated moderation, abuse prevention, or other adversarial systems.</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Contributions to open source projects</span></li> </ul> <p><strong>What you’ll get:</strong></p> <ul> <li style="font-weight: 400;"><span style="font-weight: 400;">Generous performance-based bonus plans to all eligible employees - we share in our success as one team</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Rich medical, dental, and vision coverage</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Quarterly all-company wellness days where everyone takes a pause together</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Country specific holidays plus a day off for your birthday</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">One-time home office stipend</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Annual professional development budget</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Quarterly well-being stipend</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Considerable paid parental leave</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Employee referral bonus program</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">Other benefits (life/AD&amp;D, disability, EAP, etc. - varies by country)</span></li> </ul> <p><strong>About Mozilla&nbsp;</strong></p> <p>Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.</p> <p><strong>Commitment to diversity, equity, inclusion, and belonging</strong></p> <p>Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission.&nbsp; We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation<span style="color: #003366;">s, </span>gender identities, and expressions.</p> <p>We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at <a class="external-link" ---------- to request accommodation.</p> <p>We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws.&nbsp; Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.</p> <p>Group: D</p> <p>#LI-REMOTE</p> <p>Req ID: R3023</p> </div> </div><div class="content-pay-transparency"><div class="pay-input"><div class="description"><p><strong>Hiring Ranges:</strong></p></div><div class="title">Remote France</div><div class="pay-range"><span>€53.000</span><span class="divider">&mdash;</span><span>€71.000 EUR</span></div></div></div>

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