Linux Cryptography and Security Engineer Your role at Canonical: Build and maintain the security foundations that enable Ubuntu and its users to operate securely and remain compliant with international information security standards such as FIPS 140‑3 and Common Criteria. Responsibilities Collaborate with other engineers in the Security Hardening team to achieve and retain various Security certifications. Extend and enhance Linux cryptographic components such as OpenSSL, Libgcrypt, and GnuTLS to support FIPS and CC certification. Collaborate with external security consultants to test and validate kernel and crypto module components. Work with external partners to develop security hardening benchmarks and audit + remediation automation for Ubuntu. Contribute to Ubuntu mainline and upstream projects to land solutions and benefit the community. Communicate and collaborate within and outside Canonical to identify opportunities to improve our security posture, rapidly resolve issues, and deliver high‑quality solutions on schedule. Qualifications Hands‑on experience with low‑level Linux cryptography APIs and debugging. Excellent software engineering fundamentals, including prior experience with C development. Hands‑on experience with Linux system administration and shell scripting. Demonstrated knowledge of security and cryptography fundamentals, with direct experience writing secure code and implementing best practices. Significant development experience working with open‑source libraries. Excellent verbal and written communication skills for efficient collaboration with internal and external partners in a remote‑first environment. Additional Skills Prior experience working on FIPS/Common Criteria certified products and in‑depth knowledge of the underlying standards. Prior experience working directly with DISA‑STIG or CIS benchmarks, including related audit + remediation tooling (e.G. Compliance as Code). Experience working directly with the Linux Kernel. Prior experience with Python, OVAL (Open Vulnerability Assessment Language), and Ansible. History of contributions to open‑source projects. What we offer you Distributed work environment with twice‑yearly team sprints in person – we’ve been working remotely since 2004. 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 for travel and 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 – one of the most important open‑source projects and platform for AI, IoT, and the cloud – we are changing the world on a daily basis. We recruit globally, set high standards for people joining the company, and expect excellence. Canonical has been a remote‑first company since its inception in 2004. Working at Canonical is a step into the future, challenging you to think differently, work smarter, learn new skills, and raise your game. Equal‑Opportunity Employment Canonical is an equal‑opportunity employer. We foster a workplace free from discrimination. Diversity of experience, perspectives, and background creates a better work environment and better products. Whatever your identity, we will give your application fair consideration. Location Salamanca, Castilla y León, Spain Seniority level Entry level Employment type Full‑time Job function Information Technology Industries Software Development #J-18808-Ljbffr