Remote Linux Crypto & Security Engineer

Canonical Ltd.; United States; Remote; USD 140,000 - 210,000; Full time

Benefits offered by this job

Learning budget USD 2,000 per year

Annual compensation review

Remote-first company culture

Travel opportunities

Job summary

Canonical is seeking a software engineer with a passion for security, cryptography, and Linux to strengthen Ubuntu's security foundations and ensure compliance with international standards such as FIPS 140-3 and Common Criteria.

In the Security Hardening team you will extend cryptographic components, automate audits, and collaborate across Canonical's kernel and engineering groups to ship robust protections for Ubuntu users.

Qualifications

• Hands-on with Linux cryptography APIs and debugging.
• Strong C development background.
• Experience in Linux system administration and shell scripting.
• Solid understanding of security and cryptography fundamentals and secure coding practices.
• Extensive work with open source libraries and contributions.

Responsibilities

• Collaborate to achieve and retain Security certifications (FIPS/CC).
• Extend cryptographic components (OpenSSL/Libgcrypt/GnuTLS) for compliance.
• Test and validate kernel and crypto modules with external consultants.
• Develop security hardening benchmarks and audit/remediation automation for Ubuntu.
• Contribute to Ubuntu mainline and upstream projects.
• Communicate effectively across internal and external partners in a remote-first environment.

Skills

Low-level Linux cryptography

C development

Linux administration

Shell scripting

Security fundamentals

Open source libraries

Remote collaboration

Tools

OpenSSL

Libgcrypt

GnuTLS

Python

Ansible

Job description

Canonical is seeking a software engineer with a passion for security, cryptography, and Linux to strengthen Ubuntu's security foundations and ensure compliance with international standards such as FIPS 140-3 and Common Criteria.

In the Security Hardening team you will extend cryptographic components, automate audits, and collaborate across Canonical's kernel and engineering groups to ship robust protections for Ubuntu users.