Mozilla - IT - Software Development

Join our team as a Staff Front-End Engineer, shaping the flagship desktop app used by millions. Lead complex technical initiatives using modern JavaScript, React/Vue, and advanced CSS/HTML. Enjoy fully remote work, a professional development stipend, and extensive PTO in this senior technical lea...

Lead complex iOS development for Thunderbird's email client as a Staff Mobile Engineer. This senior role requires 10+ years of experience, deep Swift/iOS expertise, and a focus on architecture, performance, and mentorship. Enjoy a fully remote position in the US/Canada with a competitive package ...

Join our Design team as a UI/Visual Designer, shaping the visual language for Thunderbird and MZLA's desktop, web, and mobile platforms. You'll create cohesive, accessible interfaces and contribute to design systems from concept to delivery. This fully remote role in the US/Canada offers schedule...

Seeking a Founding GTM Lead to drive 0→1 growth for Tabstack's browser automation stack for AI agents. You'll own GTM strategy, customer acquisition, and commercial validation, targeting the AI developer ecosystem. This role requires technical fluency, founder-level hustle, and 5+ years in produc...

Join Mozilla's Add-ons team as a Senior Security Engineer. You will build resilient systems for the Firefox ecosystem, focusing on security, automated moderation, and developer tools. This role requires strong Python/Django skills and collaboration in a distributed team. Enjoy top benefits, inclu...

Join Mozilla as a Staff Software Engineer for Add-on Operations. You will build resilient systems for the Firefox add-ons ecosystem using Python/Django. Lead architectural improvements, mentor engineers, and ensure platform reliability and security. Enjoy top benefits like performance bonuses, co...

Join our Design team as a UI/Visual Designer, shaping the visual language for desktop, web, and mobile platforms. You'll create cohesive, accessible interfaces and contribute to design systems in a fully remote role. We seek a designer with 3+ years of experience, a strong portfolio, and a passio...

Lead product vision and strategy for ODIN, Mozilla's AI security initiative. We seek an experienced Product Management Director with 7+ years in PM and 5+ in cybersecurity. You will build and scale this early-stage product, leveraging deep knowledge of AI threat models. Enjoy competitive benefits...

Join Mozilla's OS Integration team as a Firefox OS Integration Engineer, specializing in crash reporting on macOS. You will develop and maintain client-side crash reporting using Rust/C++, working with low-level OS primitives. This remote role offers a generous benefits package and the chance to ...

Join Mozilla's OS Integration team as a Firefox OS Integration Engineer, specializing in crash reporting on macOS. You will develop and maintain low-level crash reporting systems using Rust/C++, working within a distributed, open-source environment. This role offers competitive benefits, includin...

Join Mozilla's Firefox Enterprise team as a Senior Software Engineer. Develop and ship key OS integrations for large-scale deployments using C++, Rust, and JavaScript. Collaborate with a global team to enhance security, administration, and the user experience for millions. Enjoy top benefits, inc...

Join Mozilla's mission to safeguard an open internet as a Staff Security Engineer. You'll embed security into Firefox and other products via threat modeling, code review, and penetration testing. This remote role requires 5+ years in application security, proficiency in Python/Go/Java, and expert...