Security Software Engineer

Join to apply for theSecurity Software Engineerrole atCanonical .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. The company has 1200+ colleagues in 75+ countries and operates as a remote‑first organization with occasional in‑person collaboration.We are looking for exceptional security‑focused software engineers to be integrated across product teams. In these roles you will drive security through threat modeling, architecture reviews, static analysis, fuzz testing, and open‑source community participation. The work spans product security, vulnerability response, proactive hardening, and open‑source contribution.This is a globally remote position that requires strong self‑discipline and is open to international travel at least twice a year, typically for one week.What you'll doDefine, implement, and document new security featuresLead security‑focused initiatives within a product engineering teamAnalyze, fix, and test vulnerabilities in open source softwareContribute to Ubuntu and upstream projects to benefit the communityAudit and analyze source code for vulnerabilitiesIntegrate new tools into our security infrastructure, pipelines, and processesAchieve and retain various security certificationsExtend and enhance Linux cryptographic components to meet country‑specific compliance requirements, such as FIPS and Common Criteria (CC) certificationsWork with external partners to develop Center for Internet Security (CIS) benchmarksDesign and develop hardening automation for UbuntuStay up to date with trends and developments in the security industryDevelop, test, and maintain new software capabilitiesProvide guidance and support to other engineering teams on security best practicesWhat we are looking for in youAn exceptional academic track record from high school and universityUndergraduate degree in Computer Science or STEM, or a compelling alternative narrativeTrack record of going above and beyond expectationsThorough understanding of common security vulnerability categories and remediation techniquesKnowledge of modern software engineering practicesFamiliarity with open‑source development tools and methodologiesProficiency in one or more of C, C++, Python, Go, Rust, Java, Ruby, PHP, or JavaScript/TypeScriptExperience as a security championExperience driving security within a wider SSDLC processProfessional written and spoken EnglishExperience with Linux (Debian or Ubuntu preferred)Excellent interpersonal skills, curiosity, flexibility, and accountabilityPassion, thoughtfulness, and self‑motivationExcellent communication and presentation skillsResults‑oriented with a personal drive to meet commitmentsOptional skills we also valueClear and effective communication with both the team and Ubuntu community membersExperience working with the Linux kernelExperience with security certifications, FIPS, and/or Common Criteria (CC)Experience with OVAL (Open Vulnerability Assessment Language)Knowledge of cryptographic modules such as OpenSSL and LibgcryptKnowledge of low‑level Linux cryptography APIsDemonstrated ability to learn quicklyPerformance engineering experienceWhat we offer youDistributed work environment with twice‑yearly in‑person team sprintsPersonal learning and development budget of USD 2,000 per yearAnnual compensation reviewRecognition rewardsAnnual holiday leaveMaternity and paternity leaveEmployee Assistance ProgrammeOpportunity to travel to new locations to meet colleaguesPriority Pass, and travel upgrades for long‑haul company eventsAbout Canonical Canonical is a pioneering tech firm at the forefront of the global move to open source. As the publisher of Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud, we are changing the world on a daily basis. We recruit on a global basis and set a very high standard for people joining the company.Canonical is an equal opportunity employer We are proud to foster a workplace free from discrimination. Diversity of experience, perspectives, and backgrounds creates a better work environment and better products. Whatever your identity, we will give your application fair consideration.#J-18808-Ljbffr