Senior Software Engineer developing WebExtensions for Mozilla's Firefox browser. Collaborating to enhance browser capabilities and support extension developers.

A lot of companies say they’re “mission-driven.” Our unique corporate structure guarantees that every decision we make upholds our mission: to ensure the internet remains open and accessible.
Beholden to neither shareholders nor investors, Mozilla Corporation is wholly owned by the not-for-profit Mozilla Foundation.
Along with our communities of 20,000+ contributors and collaborators, Mozilla Corporation’s staff designs, builds, and distributes software that allows people to enjoy the internet on their own terms.
Our flagship product — the Firefox browser — has expanded into a family of products that protects users and alerts them of risks, safeguards passwords and provides a secure VPN (with more to come).
By maintaining a safe, open internet we're helping humanity, while also helping the individual humans employed here to reach their personal and professional goals.
With a relatively small team serving hundreds of millions of people, a culture of exploration, and a commitment to mentorship, opportunities abound to learn and grow at Mozilla.
Browse and apply for open jobs at Mozilla.
Senior Software Engineer developing WebExtensions for Mozilla's Firefox browser. Collaborating to enhance browser capabilities and support extension developers.
NetSuite Application Engineer at Mozilla optimizing ERP systems and supporting financial processes. Collaborating across teams to enhance business operations and ensure system performance.
Senior Rust Software Engineer developing privacy - preserving advertising components for Mozilla's products. Collaborating across teams to enhance performance and ethical standards in digital advertising.
Frontend Software Engineer improving Firefox features at Mozilla for both desktop and mobile devices. Collaborating on user acquisition and retention with a global open source community.
Senior Product Manager owning the search strategy and execution for Firefox Desktop browser. Focusing on growing search engagement and revenue across Windows, macOS, and Linux.
Senior Mobile Engineer developing Android applications for Mozilla, focusing on a healthy and inclusive internet. Collaborating with a diverse team to maintain Firefox mobile applications and open - source components.
iOS Engineer developing sophisticated mobile applications on iOS for Mozilla's open - source projects. Contributing to user experience and privacy in the web browsing landscape.
Senior Software Engineer crafting frontend experiences for AMO. Working on modernizing the platform with a focus on accessibility and user trust.
Senior Software Engineer contributing to Mozilla's Firefox Monitor team by developing cloud - native applications. Focused on backend systems, integrations, and maintaining production environments.
Senior Product Manager focusing on OS integrations, graphics, and media for Mozilla's Firefox. Collaborating with engineering to enhance performance, reliability, and user experience across platforms.
Senior Technical Program Manager leading and scaling localization initiatives for Mozilla products. Collaborating with UX and engineering teams to ensure localization readiness and quality.
Senior Marketing Data Scientist for Mozilla providing analytical support to marketing team's investment decisions. Measuring marketing performance and uncovering insights to enhance impact.
Senior Data Engineer at Mozilla managing data lifecycle and quality. Building data pipelines and collaborating with product teams for data - driven decisions.
Engineering Manager at Mozilla leading the Firefox Desktop OMC frontend team. Focused on delivering engaging user experiences and driving technical excellence.
Incident Responder responsible for managing and mitigating security incidents on a global scale at Mozilla. Ensuring the integrity of products and safety of users in the cybersecurity team.
Release Engineer automating software builds and releases for Thunderbird. Collaborating with teams to ensure reliable and timely delivery across platforms.
Senior Software Engineer building and maintaining communication tools for Thunderbird email systems. Contributing to a suite of services including encrypted file sharing and appointment booking.
Engineering Manager leading a software engineering team to build Mozilla's privacy - respecting advertising systems. Focusing on team development and high - quality software delivery.
Staff Engineer, Front End at Mozilla shaping user - focused interfaces for Thunderbird. Working with global teams to enhance a flagship open - source application.
Senior Engineer specializing in mobile applications for MZLA Technologies. Leading iOS initiatives with a focus on performance, usability, and collaboration.