Security Software Engineer

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 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 modelling, 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.

Location : Worldwide, this is a globally remote role. The position requires mandatory international travel at least twice a year, typically for one week.

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 analyse 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, such as FIPS and Common Criteria (CC) certifications
• 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

What we are looking for in you

Optional skills we also value

What we offer you

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. Whatever your identity, we will give your application fair consideration.

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