mozilla jobs in Ottawa

Lead the ongoing maintenance and engineering for Firefox's Graphics area with Mozilla. Utilize your expertise in C++ and Rust to ensure graphics code remains robust and efficient. As a Software Engineer specializing in Graphics, you will tackle bug fixes, regressions, and issues across platforms including Windows, macOS, and Android. The role involves...

The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren't beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their...

You will help reduce Firefox’s WebCompat bug backlog by finishing or verifying the diagnosis of the long tail of site-breakage bugs, and by writing interventions or simple fixes (often with AI assistance). You turn a large queue of reported breakages into diagnosed, actionable, or fixed bugsFinish diagnosing, or verify the diagnosis of, long-tail WebCompat...

Senior Software Engineer, Firefox Security Remote Finland Why Mozilla? The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute...

The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren't beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their...

The role is part of the Security Function within the broader Mozilla Infrastructure team. The Security team supports Product, Enterprise and GRC functions across the organization aligned with the mission to build a safe & secure internetThis role is responsible for defining, developing and helping implement a Governance, Risk and Compliance framework for...

As a Staff Software Engineer, Services, you’ll help shape the architecture and technical direction of web-based products that extend Thunderbird beyond email. The Services team is currently focused on building offerings such as an appointment calendar and secure file storage and transfer solutions, creating valuable experiences for our users while...

Mozilla is seeking experienced browser engineers to join a small team exploring new applications of browser technology. The work combines deep systems engineering, rapid experimentation, and close collaboration across technical disciplines We are looking for a browser engine specialist who enjoys turning difficult systems questions into working experiments....

Use HTML, CSS, and JavaScript to reduce Firefox’s WebCompat backlog as a Contract Staff Software Engineer focused on site-breakage diagnosis.Mozilla seeks a Staff Software Engineer for WebCompat bug triage and simple fixes. You will diagnose long-tail bugs, verify existing diagnoses, and write interventions or AI-assisted fixes. The work turns reported...

The Firefox Platform Layout/APZ team is a global community of engineers who care deeply about how the Web looks and feels. We are the team responsible for Pan, Scrolling, Zoom, Page Layout, CSS, images, text, printing, and animations in Gecko, the engine behind Firefox. You will be able to design and develop standards-compliant CSS and page layout features...

Use HTML, CSS, and JavaScript to reduce Firefox’s WebCompat backlog as a Contract Staff Software Engineer focused on site-breakage diagnosis. Mozilla seeks a Staff Software Engineer for WebCompat bug triage and simple fixes. You will diagnose long-tail bugs, verify existing diagnoses, and write interventions or AI-assisted fixes. The work turns reported...

You will take on the ongoing maintenance and routine engineering work in Firefox’s Layout area (CSS, page layout, APZ, text, images) Working independently at a tech-lead level, you keep the Layout code healthy Own day-to-day Layout maintenance: fix bugs and regressions, keep tests green, handle incoming issues Diagnose and fix Layout problems across...

Mozilla is seeking a hands-on Mobile Product Manager focused on Firefox for iOS, with contributions across mobile platforms including Android. Based in Canada, you’ll work closely with engineers, designers, data science, and TPMs to ship high-impact updates that improve activation and retention. You will monitor app health, perform ASO and growth...

You will take on the ongoing maintenance and engineering work in Firefox’s Graphics area (rendering, compositing, images, canvas, WebGL). You help keep the graphics code healthyOwn day-to-day Graphics maintenance: bug fixes, regressions, test upkeep, incoming issuesDiagnose and fix graphics problems across platforms (Windows, macOS, Linux, Android)Carry...

Mozilla Corporation's Firefox Desktop Integrations team is seeking a Software Engineer at an early-career level to contribute to cross-platform features such as OS notifications, taskbar integrations, and startup behavior. This role supports Remote Canada and involves collaboration with product, design, and data science to ship measurable improvements. You...

Mozilla is seeking a Senior Software Engineer for Firefox Security. This remote Finland role focuses on designing, implementing, and hardening security features across platforms. You will drive improvements to the core security posture, work with cryptography and WebPKI, and collaborate across teams to resolve issues while maintaining high performance and...

Mozilla Corporation's Firefox Desktop Integrations team is seeking a Software Engineer at an early-career level to contribute to cross-platform features such as OS notifications, taskbar integrations, and startup behavior. This role supports Remote Canada and involves collaboration with product, design, and data science to ship measurable improvements.You...

Mozilla is seeking a Staff Software Engineer, Services, to shape architecture and technical direction for Thunderbird-related services, including calendars and secure file storage. This individual contributor role carries significant ownership and influence across teams and the community.You will lead the technical architecture of new Services products,...

Mozilla is seeking a senior Layout engineer to own ongoing maintenance of the Firefox Layout stack (CSS, page layout, APZ, text, images). You will work independently at a tech-lead level to keep the Layout code healthy, fix bugs, and maintain tests across Windows, macOS, Linux, and Android.You will participate in planning and standards discussions, perform...

As a Staff Software Engineer, Services, you’ll help shape the architecture and technical direction of web-based products that extend Thunderbird beyond email. The Services team is currently focused on building offerings such as an appointment calendar and secure file storage and transfer solutions, creating valuable experiences for our users while...