mozilla

Senior Software Engineer, Firefox Security 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 open-source ...

Mozilla is seeking an Incident Responder to monitor and mitigate attacks across Mozilla’s products and services. You will be part of a flexible team responsible for handling security incidents.You’ll need practical security experience and the ability to respond quickly and clearly with diverse stakeholders. As part of the team, you will drive the...

Senior Software Engineer, Firefox Security Belgium Full Time EUR 56000-74000 / annual Posted 1 day ago Location Belgium Job type Full Time Salary EUR 56000-74000 / annual Posted 15 Oct 2026 (1 day ago) Region Europe Category Developer, Operations Source Himalayas Work mode Remote Why Mozilla? The Mozilla Corporation is wholly owned by the non-profit 501(c)...

Mozilla Corporation is seeking a Senior Software Engineer to help advance addons.mozilla.org platform, working across the Add-ons stack with DevHub, Reviewer tools, and automated moderation pipelines. You will help establish engineering standards, build robust observability, and collaborate with engineers, reviewers and leadership to deliver resilient...

Mozilla Corporation is seeking a Senior Software Engineer to help advance addons.mozilla.org platform, working across the Add-ons stack with DevHub, Reviewer tools, and automated moderation pipelines. You will help establish engineering standards, build robust observability, and collaborate with engineers, reviewers and leadership to deliver resilient...

Senior Software Engineer, Firefox SecurityWhy 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 open-source...

Mozilla seeks a Senior Software Engineer to design, build and ship security enhancements for Firefox, strengthening cross-platform security across operating systems. You’ll investigate issues, drive robust fixes, and optimize performance in a large, multi-language codebase. Ideal candidates have 3+ years in low-level software engineering with C/C++, strong...

Mozilla in Belgium is seeking a Senior Software Engineer, Firefox Security to design, implement and ship advanced security features for enterprise users, strengthening Firefox security posture across platforms.You will work with distributed teams on cryptographic protocols, WebPKI and security-sensitive APIs, tackling root causes and delivering robust fixes...

Mozilla Corporation is seeking a Senior Software Engineer to help advance addons.mozilla.org platform, working across the Add-ons stack with DevHub, Reviewer tools, and automated moderation pipelines.You will help establish engineering standards, build robust observability, and collaborate with engineers, reviewers and leadership to deliver resilient systems...

Mozilla seeks a Senior Software Engineer to design, build and ship security enhancements for Firefox, strengthening cross-platform security across operating systems. You’ll investigate issues, drive robust fixes, and optimize performance in a large, multi-language codebase.Ideal candidates have 3+ years in low-level software engineering with C/C++, strong...

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser, and Pocket, a service for keeping up with the best content online. Now, with more than 225 million people around the world using our products...

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and...

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and...