Jobs at Mozilla
1,405 open positions
Software Engineer (Rust / C++), Desktop
Company: Mozilla
Location: Remote
Posted Jan 30, 2025
MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation, is seeking a Software Engineer for their Desktop team. The role involves modernizing the Thunderbird application, a global free and open-source email and productivity app, by bringing Rust into the legacy codebase, improving performance, and implementing new features. The ideal candidate should have 3+ years of experience in backend software development with Rust and C++, strong understanding of software engineering best practices, and excellent communication skills. The company offers competitive salaries, comprehensive benefits, and a commitment to diversity, equity, and inclusion.
Software Engineer (Rust / C++), Desktop
Company: Mozilla
Location: UK
Posted Jan 30, 2025
MZLA Technologies Corporation, the home of Thunderbird, a global free and open-source email and productivity app, is seeking a Software Engineer for their Desktop team. The role involves modernizing the legacy codebase, implementing new features, and improving performance using Rust and C++. The successful candidate will work with a passionate team of experts, collaborating with engineers across various specializations and time zones. The position offers a competitive salary, comprehensive benefits, and the opportunity to contribute to a mission-driven organization committed to fostering openness, transparency, collaboration, creativity, and diversity.
Software Engineer (Rust / C++), Desktop
Company: Mozilla
Location: Canada
Posted Jan 30, 2025
MZLA Technologies Corporation, the home of Thunderbird, a global free and open-source email and productivity app, is seeking a Software Engineer for the Desktop team. The role involves modernizing the legacy codebase, implementing new features, and improving performance using Rust and C++. The successful candidate will work with a passionate team of experts across North America and Europe, contributing to the mission of providing best-in-class productivity solutions independent of big tech.
Senior Software Engineer - Engineering Workflow and CI
Company: Mozilla
Location: Poland
Posted Nov 08, 2025
Mozilla Corporation, a nonprofit-backed technology company, has been shaping the internet for the better over the last 25 years. With a focus on diverse areas including AI, social media, and security, Mozilla aims to make the internet better for people while never losing sight of its core mission. The company values diversity, equity, inclusion, and belonging, and offers generous benefits to its employees.
Senior UX Design Specialist
Company: Mozilla
Location: Remote
Posted Jan 30, 2025
MZLA Technologies Corporation, the for-profit subsidiary of the Mozilla Foundation, is seeking a Senior UX Design Specialist. The role involves collaborating across platforms to create user experiences that align with Thunderbird's values. The successful candidate will mentor junior designers, partner with engineers, and ensure accessibility and user-centered design. The position is remote, full-time, and offers a competitive salary and comprehensive benefits package. The company is committed to diversity, equity, and inclusion.
Senior UX Design Specialist
Company: Mozilla
Location: USA
Posted Jan 30, 2025
MZLA Technologies Corporation, the home of Thunderbird, a global free and open-source email and productivity app, is seeking a Senior UX Design Specialist. The role involves collaborating across platforms to craft user experiences that embody Thunderbird's values. The successful candidate will mentor growing designers, partner with engineers, and ensure accessibility and user-centered design. The position is a remote full-time role with a competitive salary and comprehensive benefits package.
Senior Sofware Engineer (Localization)
Company: Mozilla
Location: Germany
Posted Nov 08, 2025
Mozilla Corporation is a nonprofit-backed technology company that has shaped the internet for the better over the last 25 years. They make pioneering brands like Firefox, a privacy-minded web browser, and focus on diverse areas including AI, social media, and security. The Mozilla Corporation is wholly owned by the nonprofit Mozilla Foundation and is committed to making the internet better for people.
iOS Engineer
Company: Mozilla
Location: USA
Posted Jan 30, 2025
MZLA Technologies Corporation, the home of Thunderbird, a global free and open-source email and productivity app, is seeking a Senior Software Engineer for iOS. The ideal candidate will have deep expertise in mobile application development for iOS, using languages and frameworks such as Swift and SwiftUI. This role offers the opportunity to build an open-source mobile product from the ground up, leading the development of Thunderbird's mobile applications for iOS. The successful candidate will work with a dynamic team of 40+ staff across seven countries and time zones, committed to fostering openness, transparency, collaboration, creativity, diversity, and resilience. The position is remote, full-time, and offers a competitive salary and comprehensive benefits package.
iOS Engineer
Company: Mozilla
Location: USA
Posted Jan 30, 2025
MZLA Technologies Corporation, the home of Thunderbird, a global free and open-source email and productivity app, is seeking a Senior Software Engineer for iOS. The ideal candidate will have deep expertise in mobile application development for iOS, experience with Swift and SwiftUI, and a proven ability to optimize application performance and design scalable mobile architectures within open-source environments. The role involves building and refining Thunderbird's mobile products and platform architecture, ensuring scalability, performance, reliability, and user-centered design. The position offers a competitive salary, comprehensive benefits, and the opportunity to work remotely with a global team.
Senior Software Engineer - Engineering Workflow and CI
Company: Mozilla
Location: Canada,UK
Posted Nov 08, 2025
Mozilla's job posting highlights a role in improving Firefox development with competitive benefits, a mission to enhance the internet, and a commitment to diversity and inclusion.
iOS Engineer
Company: Mozilla
Location: Germany
Posted Jan 30, 2025
MZLA Technologies Corporation, the home of Thunderbird, is seeking a Senior Software Engineer for iOS. Thunderbird is a global, free, and open-source email and productivity app that has grown significantly since its launch 20 years ago. The ideal candidate will have deep expertise in mobile application development for iOS, using languages and frameworks such as Swift and SwiftUI. This role offers the opportunity to build an open-source mobile product from the ground up, focusing on evolving the mobile platform to meet the needs of Thunderbird's global user base. The successful candidate will work remotely, full-time, and report directly to the Senior Manager of Mobile Engineering. The role involves building and refining Thunderbird's mobile products and platform architecture, ensuring scalability, performance, reliability, and user-centered design. The candidate should have 7+ years of professional development experience, 3+ years of mobile development experience, and a strong understanding of security practices.
Software Engineer (Rust / C++), Desktop
Company: Mozilla
Location: USA
Posted Jan 30, 2025
MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation, is seeking a Software Engineer for the Desktop team. The role involves modernizing the legacy codebase of Thunderbird, a global free and open-source email and productivity app, by implementing new features, transitioning legacy code to Rust and C++, and improving performance. The ideal candidate should have 3+ years of experience in backend software development with proficiency in Rust and C++, strong understanding of software engineering best practices, and excellent communication skills. The position is fully remote, full-time, and offers a competitive salary and comprehensive benefits package.