Canonical is a leading provider of open source software and operating systems to the general 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 is founder-led, profitable, and growing. Canonical is looking for exceptional security-focused software engineers to be integrated across product teams. While they also contribute to the product as engineers, 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, table-top 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 in these roles collaborate closely with other Canonical teams, customers, and partners across the open source ecosystem.
Responsibilities 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 our security infrastructure, pipelines, and processes
Achieve and retain various security certifications
Extend and enhance Linux cryptographic components to meet country-specific compliance requirements
Work with external partners to develop Center for Internet Security (CIS) 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




Requirements An exceptional academic track record from both high school and university
Undergraduate degree in Computer Science or STEM, or a compelling narrative about your alternative path
A track record of going above and beyond expectations
Thorough understanding of the 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, and accountability
Passion, thoughtfulness, and self-motivation
Excellent communication and presentation skills
Results-oriented, with a personal drive to meet commitments
Optional Skills Clear and effective communication with both the team and Ubuntu community members
Experience working with the Linux kernel
Experience with security certifications and knowledge of FIPS and/or Common Criteria (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 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
Priority Pass, and travel upgrades for long haul company events
Canonical is an equal opportunity employer. We are proud to foster a workplace free from discrimination. Diversity of experience, perspectives, and background create a better work environment and better products.

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📌 Security Software Engineer (Xico)
🏢 Canonical
📍 Xico