Canonical, the company behind Ubuntu, is seeking security-focused software engineers to join their distributed teams. This role encompasses all aspects of product security, including feature development, vulnerability response, and proactive security measures. As a security engineer, you'll work across various product teams, challenging them to think deeply about security while contributing to state-of-the-art practices from threat modeling to architecture reviews. You'll be involved in handling long-term security response and hardening for the entire Ubuntu operating system and open source universe, working with thousands of upstream projects. The role offers unique opportunities to work on significant security projects like AppArmor kernel investments and Ubuntu hardening toolkits. You'll collaborate with multiple engineering teams, customers, and open source community partners, making a real impact on global open source security. The position offers competitive compensation, comprehensive benefits, and the flexibility of remote work with opportunities for in-person collaboration during bi-annual team sprints. This is an excellent opportunity for security professionals who want to shape the future of open source security at scale.