Canonical is hiring: Security Software Engineer in San Diego

Overview Join to apply for the Security Software Engineer role at Canonical . Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the world's leading public cloud and silicon providers, and industry leaders in many sectors. The company is a pioneer of global distributed collaboration, with 1200+ colleagues in 75+ countries and very few office-based roles. Teams meet two to four times yearly in person, in interesting locations around the world, to align on strategy and execution. Canonical is founder-led, profitable, and growing. Canonical is looking for exceptional security-focused software engineers who will be integrated across product teams. Their primary focus is to challenge the entire team to think more deeply about security through state-of-the-art practices such as threat modeling, tabletop exercises, architecture and design reviews, static analysis tools, and fuzzing, among others. These roles encompass all aspects of product security, including feature development, vulnerability response, proactive security, and open source community participation. Engineers collaborate closely with other Canonical teams, customers, and partners across the open source ecosystem. Working with tens of thousands of upstreams requires fluency in major programming languages and the ability to design, build, and adopt sophisticated tools that enable scale and speed with confidence. This role requires the ability to be productive in a globally distributed team through strong self-discipline and motivation. It also involves mandatory international travel at least twice a year, typically for one week. Location: Worldwide, this is a globally remote role. Apply if you are a security-focused software engineer, passionate about open source, and excited by Canonical's products and mission. Division and team details are provided for context; this description emphasizes responsibilities, qualifications, and expectations rather than internal postings or referrals. What you'll do Define, implement, and document new security features Lead security-focused initiatives within a product engineering team Analyze, fix, and test vulnerabilities in open source software Contribute to Ubuntu and upstream open source projects to benefit the community Audit and analyze source code for vulnerabilities Integrate new tools into security infrastructure, pipelines, and processes Achieve and retain various security certifications Extend and enhance Linux cryptographic components to meet country-specific compliance requirements (e.g., FIPS, Common Criteria) Work with external partners to develop Center for Internet Security benchmarks Design and develop hardening automation for Ubuntu Stay up to date with trends and developments in the security industry Develop, test, and maintain new software capabilities Provide guidance and support to other engineering teams on security best practices What we are looking for in you An exceptional academic track record from high school and university Undergraduate degree in Computer Science or STEM, or a compelling alternative path A track record of going above and beyond expectations Thorough understanding of common categories of security vulnerabilities and how to fix them Knowledge of modern software engineering techniques Familiarity with open source development tools and methodologies Skill in one or more of C, C++, Python, Go, Rust, Java, Ruby, PHP, or JavaScript/Typescript Experience as a security champion Experience driving security within a wider SSDLC process Professional written and spoken English Experience with Linux (Debian or Ubuntu preferred) Excellent interpersonal skills, curiosity, flexibility, accountability, and self-motivation Excellent communication and presentation skills Results-oriented with a strong personal drive to meet commitments Optional skills we also value Clear and effective communication with the team and Ubuntu community Experience working with the Linux kernel Experience with security certifications and knowledge of FIPS/CC Experience with OVAL (Open Vulnerability Assessment Language) Knowledge of cryptographic modules such as OpenSSL and Libgcrypt Knowledge of low-level Linux cryptography APIs Demonstrated ability to learn quickly Performance engineering experience What we offer you Distributed work environment with twice-yearly team sprints in person Personal learning and development budget of USD 2,000 per year Annual compensation review Recognition rewards Annual holiday leave Maternity and paternity leave Employee Assistance Programme Opportunity to travel to new locations to meet colleagues Travel upgrades for long haul company events About Canonical Canonical is a pioneering tech firm at the forefront of the global move to open source. As the publisher of Ubuntu and a platform for AI, IoT and the cloud, we recruit on a global basis and maintain high standards. Canonical has been remote-first since 2004. Working here challenges you to think differently, work smarter, and raise your game. Canonical is an equal opportunity employer and fosters a workplace free from discrimination. Diversity of experience and perspective is valued, and all applicants will receive fair consideration. Additional job details Seniority level: Entry level Employment type: Full-time Job function: Engineering and Information Technology Industries: Software Development Canonical is an equal opportunity employer #J-18808-Ljbffr