Senior Software Engineer, Firefox Security at Mozilla Corporation Team: Firefox Locations: Remote Sweden, Remote UK, Remote France, Remote Germany, Remote Finland, Remote Belgium, Remote Spain, Remote Netherlands 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 helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. 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 terms. At Mozilla, we’re serving humanity—by maintaining a safe, open internet—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. What You’ll Do * Design, build and implement security and hardening features for enterprise users: Design, implement, test, and ship cutting‑edge security features that strengthen Firefox’s security posture. * Advance Firefox’s security architecture across multiple operating systems: Contribute to and drive cutting‑edge improvements to Firefox’s core security posture, by building privilege isolation and moving trust boundaries or Strengthen Firefox’s securi

📌 Senior Software Engineer, Firefox Security (Andalucía)
🏢 Thunderbird
📍 Andalucía