Mozilla
27 open TypeScript positions
Open Positions
Senior Security Engineer, Add-ons Operations
The Senior Security Engineer - Operations role involves delivering major features and architectural improvements across the Add-ons platform, focusing on automated moderation pipelines, Reviewer tools, and DevHub. Key responsibilities include improving platform reliability through deployments, monitoring, and incident response, while ensuring the platform remains safe and trustworthy for users and developers. This position requires full stack development experience using React/TypeScript frontends, Django backends, and working with infrastructure on Google Cloud.
Senior Security Engineer, Add-ons Operations
The Senior Security Engineer in Add-ons Operations will be responsible for delivering major features and architectural improvements across the Firefox Add-ons stack, focusing on automated moderation pipelines, Reviewer tools, and DevHub modernization. Key responsibilities include improving platform reliability through deployments, monitoring, and incident response, while ensuring the ecosystem remains safe and trustworthy for users and developers. This role involves full-stack development using React/TypeScript, Django, and MySQL within a Google Cloud environment.
Senior Security Engineer, Add-ons Operations
The Senior Security Engineer, Add-ons Operations role focuses on building resilient systems for the Firefox add-ons ecosystem (AMO), including automated moderation pipelines and Reviewer tools. Key responsibilities involve full-stack development using React/TypeScript and Django/Python, ensuring platform reliability through monitoring and incident response on Google Cloud. The engineer will collaborate across teams to deliver features, maintain security, and improve ecosystem safety for millions of users.
Senior Security Engineer, Add-ons Operations
The Senior Security Engineer, Add-ons Operations role involves delivering major features and architectural improvements across the Firefox add-ons ecosystem (AMO), focusing on automated moderation pipelines and Reviewer tools. Key responsibilities include full-stack development (React/Django/MySQL on Google Cloud), enhancing platform reliability through monitoring and incident response, and maintaining platform security and user trust. The engineer will collaborate cross-functionally to deliver end-to-end improvements and contribute openly via code reviews and discussions.
Staff Software Engineer, Add-on Operations
The Staff Software Engineer in Add-on Operations at Mozilla will focus on crafting resilient systems, planning major architectural improvements for the Firefox add-ons stack, including automated moderation pipelines and Reviewer tools. Key responsibilities involve enhancing platform reliability through deployment and incident response, mentoring engineers, and collaborating across multidisciplinary teams to deliver end-to-end platform improvements for add-on developers. This role involves full-stack development using React/TypeScript, Django, and MySQL within a Google Cloud environment.
Staff Software Engineer, Add-on Operations
The Staff Software Engineer - Operations role focuses on crafting resilient systems for the Firefox add-ons ecosystem, particularly around automated moderation pipelines and developer tools. Responsibilities include planning major architectural improvements, mentoring engineers, and ensuring platform reliability through modern deployment and incident response practices on Google Cloud. This position requires strong full-stack development experience with React/TypeScript and Django, coupled with excellent collaboration skills in a distributed environment.
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Staff Application Engineer, Workplace Technology
This Staff Application Engineer role involves serving as a technical leader within the Workplace Technology team to architect and scale automation systems for collaboration, identity, and GenAI platforms. Key responsibilities include leading end-to-end engineering of lifecycle workflows like onboarding/off-boarding and building reusable agent orchestration layers. The position requires deep technical ownership, mentoring junior engineers, and partnering across IT, Security, and People teams to advance platform reliability and intelligence.
Staff Application Engineer, Workplace Technology
The Staff Application Engineer will serve as a technical leader within the Workplace Technology team, responsible for architecting scalable systems and automation enhancements across collaboration, identity, and GenAI platforms. Key responsibilities include leading the engineering of lifecycle workflows, implementing observability for automations, and partnering with cross-functional teams to ensure security and compliance. This role requires deep technical ownership to drive innovation in how Mozilla works through prototyping next-generation agentic services.
Staff Application Engineer, Workplace Technology
The Staff Application Engineer role involves serving as a technical leader within the Workplace Technology team to architect scalable systems and automation enhancing collaboration, identity, and AI productivity. Key responsibilities include leading the end-to-end engineering of lifecycle workflows (onboarding/off-boarding) and building reusable libraries and agent orchestration layers. This position requires deep technical ownership, partnering across IT, Security, and People teams to advance the reliability and intelligence of Mozilla's workplace platform.
Senior Software Engineer
The Senior Software Engineer will join the Add-ons Engineering team to build and maintain addons.mozilla.org (AMO) focusing on frontend and full-stack development using React/TypeScript and Django. Key responsibilities include designing and refining fast, accessible frontend experiences, modernizing the platform architecture, and ensuring platform reliability and security.
Senior Software Engineer
The Senior Software Engineer will join the Add-ons Engineering team to build and maintain addons.mozilla.org (AMO) and DevHub. Responsibilities include designing and refining fast, accessible frontend experiences using React/TypeScript, contributing to platform modernization, and ensuring platform security. The role requires professional experience building modern web applications and proficiency in related frontend technologies.
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Senior Software Engineer
The Senior Software Engineer will join the Add-ons Engineering team to build and maintain addons.mozilla.org (AMO) by crafting frontends using React/TypeScript and working with the Django backend. Key responsibilities include designing and refining frontend experiences, contributing to platform architecture modernization, ensuring platform safety and trustworthiness, and resolving user-impacting issues. This role requires at least 4 years of experience building modern web applications, proficiency in core web technologies, and familiarity with backend frameworks like Django.
Senior Software Engineer
The Senior Software Engineer will join the addons.mozilla.org (AMO) team to craft beautiful, accessible frontend experiences using React/TypeScript, while also contributing to the Django backend and MySQL datastore. Key responsibilities include designing, building, and refining frontend features, modernizing platform architecture, and ensuring platform reliability, security, and trustworthiness. This role requires over 4 years of professional experience building modern web applications and strong collaboration skills.
Senior Software Engineer
The Senior Software Engineer will join the addons.mozilla.org (AMO) team to craft beautiful, accessible frontend experiences using React/TypeScript and Django/MySQL. Key responsibilities include frontend development, platform modernization, architectural improvements, and ensuring platform reliability and security. This role requires 4+ years of experience in building modern web applications and strong proficiency in the specified frontend technologies, working closely with designers and product managers to deliver end-to-end improvements.
Senior Software Engineer
The Senior Software Engineer will join the addons.mozilla.org (AMO) team to craft accessible frontend experiences using React/TypeScript and Django/MySQL. Key responsibilities include designing and refining frontend features, modernizing the platform architecture, ensuring platform security and reliability, and collaborating with cross-functional partners to deliver end-to-end improvements.
Senior Software Engineer
Mozilla is seeking a Senior Software Engineer to work on the addons.mozilla.org (AMO) platform. This role involves crafting accessible frontend experiences using React/TypeScript, modernizing the Django/MySQL backend architecture, and ensuring platform reliability and security. The engineer will collaborate closely with product and design teams to deliver features that reach millions of Firefox users globally.
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Senior Software Engineer
The Senior Software Engineer will join the addons.mozilla.org (AMO) team to craft accessible frontend experiences using React/TypeScript and Django/MySQL, while modernizing the platform architecture. Key responsibilities include designing and refining user-facing features, ensuring platform reliability through monitoring and incident response, and collaborating across functional teams to deliver end-to-end improvements. This role requires 4+ years of professional experience building modern web applications and a commitment to open collaboration.
Senior Software Engineer
The Senior Software Engineer will join the Add-ons Engineering team to build and maintain addons.mozilla.org (AMO). Key responsibilities include designing and refining fast, accessible frontend experiences using React/TypeScript, modernizing platform architecture (Django backend), and ensuring platform reliability and security. This role requires 4+ years of experience in modern web application development and strong skills in React/TypeScript.
Senior Software Engineer
The Senior Software Engineer will join the Add-ons Engineering team to build and maintain addons.mozilla.org (AMO). Responsibilities include designing and refining frontend experiences using React/TypeScript, contributing to platform architecture modernization, and ensuring platform reliability and security. This role requires 4+ years of experience building modern web applications and proficiency across the full stack including Django/MySQL.
Senior Software Engineer
The Senior Software Engineer will join the addons.mozilla.org (AMO) team to craft beautiful, accessible experiences and modernize the platform's architecture using React/TypeScript frontends and a Django backend. Key responsibilities include designing and refining frontend experiences, contributing to platform modernization, maintaining platform safety, and resolving user-impacting issues.
Senior Software Engineer, Backend
The Content Engineering team is hiring a Senior Backend Engineer to build high-quality backend systems for Firefox New Tab features, focusing on recommendation and content services. Responsibilities include writing code, testing, problem-solving, and collaborating with multi-functional teams to improve engineering practices. Candidates should have 4+ years of software engineering experience, including 3+ years with NodeJS or Python and Testing Frameworks.
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Senior Software Engineer, Backend
The Content Engineering team is seeking a Senior Backend Engineer to develop high-quality backend systems for Firefox's New Tab features, focusing on recommendation and content services. Responsibilities include writing code/tests, solving complex problems, and collaborating with multi-functional teams. The role requires 4+ years of software engineering experience, specifically utilizing NodeJS or Python.
Full-stack Staff Product Engineer
MZLA Technologies Corporation is hiring a generalist Full-Stack Staff Product Engineer to work across the entire stack on a new privacy-centric AI assistant product. Responsibilities include designing and implementing end-to-end features, making architectural decisions, and building cross-platform experiences using technologies like React, Tauri, and Rust. This role requires extensive experience (10+ years total, 5+ frontend) and thrives on ownership across frontend, backend, desktop shell, and AI integrations.
Full-stack Staff Product Engineer
MZLA Technologies Corporation is seeking a versatile Full-Stack Staff Product Engineer to help build a new privacy-centric, cross-platform AI assistant. The role involves designing and implementing end-to-end features across the entire modern stack, including frontend (React), backend, desktop integration (Tauri), and AI/LLM capabilities. This role requires significant ownership over architectural decisions and the full product development cycle, ensuring data privacy through local-first architecture.
Senior Software Engineer, Web Services
The Senior Software Engineer, Web Services will help shape the future of email by building systems and infrastructure for Thunderbird using leading-edge technologies like JMAP. Key responsibilities include leading technical initiatives, designing and maintaining services in Python and Typescript, and optimizing email deliverability. This role requires 7+ years of software engineering experience, including significant hands-on work in web infrastructure, service architecture, or DevOps.
Senior Software Engineer, Web Services
The Senior Software Engineer, Web Services will help shape the future of email by building systems and infrastructure to power Thunderbird's evolution into a suite of privacy-respecting productivity tools. Key responsibilities include leading technical initiatives, influencing product vision based on user needs, and designing, building, and maintaining services in Python and Typescript. The role requires analyzing complex email delivery issues, optimizing infrastructure for performance, and supporting service stability through occasional on-call rotation.
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Senior Software Engineer, Web Services
The Senior Software Engineer, Web Services will build systems and infrastructure powering Thunderbird and develop innovative web products using leading-edge technologies like JMAP. Key responsibilities include leading technical initiatives, shaping product vision based on user needs, and designing, building, and maintaining services primarily in Python and Typescript. Candidates need significant experience in web infrastructure/service architecture, direct experience with email delivery, and the ability to own features from ambiguous requirements through to final delivery.