Mozilla
Mozilla builds open-source internet software, best known for the Firefox web browser, plus privacy tools like a VPN, password manager, and identity services. Its products are largely free and monetized through search partnerships and paid subscriptions, serving consumers, developers, and enterprises building for the web. Founded in 2005 and headquartered in San Francisco, Mozilla Corporation is wholly owned by the non-profit Mozilla Foundation.
Open Positions at Mozilla
20 open positions
Staff Operations Engineer leading the architecture, reliability, and evolution of Mozilla’s hybrid-cloud, data center, and workplace infrastructure. The role combines hands-on infrastructure engineering with cross-team technical leadership, automation, and operational improvement.
Senior Software Engineer on Mozilla’s Cloud Engineering team, building and evolving an internal developer infrastructure platform. The role focuses on scalable cloud-native systems, developer productivity, platform reliability, and cost-effective delivery.
Senior Software Engineer on Mozilla’s Cloud Engineering team building and maturing an Internal Developer Infrastructure Platform. The role focuses on scalable developer tooling, cloud-native infrastructure, observability, CI/CD, Kubernetes optimization, and productivity-enhancing agentic workflows.
Mozilla is seeking a Senior Staff Data Engineer to provide technical leadership across Data Engineering and Data Platform Engineering. The role will build scalable data infrastructure in GCP and help power analytics, product experiences, and machine learning applications.
Staff Product Engineer helping build Thunderbolt, an open-source enterprise AI product, across full-stack product development, AI-enabled experiences, integrations, and enterprise workflows. The role owns features from concept through launch, adoption, and iteration in a fully remote environment.
Build Thunderbolt, an open-source enterprise AI product, as a Staff Product Engineer owning full-stack features from concept through launch, adoption, and iteration. You’ll shape AI-powered chat, search, research, workflow automation, integrations, and enterprise workflows in a fully remote environment.
Staff Product Engineer will build Thunderbolt, an open-source enterprise AI product, taking full-stack features from concept through launch, adoption, and iteration. The role combines hands-on engineering, AI application development, product judgment, and enterprise-focused execution.
Lead Firefox performance engineering across a complex, cross-platform browser codebase, diagnosing bottlenecks and delivering faster, more reliable software. This senior technical leadership role combines hands-on C++ and JavaScript development with organization-wide performance strategy and education.
Build and strengthen Thunderbird’s iOS application as a senior individual contributor focused on architecture, performance, reliability, security, and user experience. You’ll work remotely with mobile engineers, product and UX partners, and the open-source community to deliver privacy-respecting communication tools.
Build and evolve Thunderbird’s iOS application as a senior individual contributor, improving its architecture, performance, security, and long-term reliability. This is a fully remote role collaborating with mobile engineers, product, UX, and the open-source community.
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