Linux Cryptography and Security Engineer

Canonical; London; On-site; GBP 70,000 - 95,000; Full time

Job summary

Canonical is seeking a Linux Cryptography and Security Engineer to strengthen the security framework for Ubuntu. In this role, you'll work with applied cryptography and coding to ensure compliance with international standards while collaborating with global organizations. This is an excellent opportunity to influence the security culture and technical direction, aligned with competitive compensation and benefits.

Benefits

Remote work environment with biannual in-person team sprints

USD 2,000 annual learning and development budget

Annual compensation review

Recognition rewards

Annual leave, maternity, and paternity leave

Employee Assistance Programme

Travel opportunities and company travel benefits

Qualifications

• Strong software engineering fundamentals including C development skills.
• Experience with security and cryptography principles.
• Knowledge of secure coding practices.

Responsibilities

• Collaborate with engineers to maintain security certifications.
• Enhance Linux cryptographic components for certifications.
• Develop automation for auditing systems.

Skills

Linux cryptography APIs

C development skills

Linux system administration

shell scripting

security and cryptography principles

secure coding practices

open source libraries

excellent communication skills

Tools

OpenSSL

Libgcrypt

GnuTLS

Python

Ansible

Job description

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Linux Cryptography and Security Engineer, London

Client: Canonical

Location: London, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Reference: af0e968b2fc9

Job Views: 4

Posted: 02.06.2025

Expiry Date: 17.07.2025

Job Description:

This is a unique opportunity to use your software engineering and cryptography skills to build and maintain the security foundation that enables Ubuntu and its users to operate securely and remain compliant with international information security standards such as FIPS-3 and Common Criteria. You will utilize your applied cryptography, Linux Security, and coding skills to enhance the Ubuntu distribution and collaborate with organizations like DISA and CIS to draft and implement security hardening benchmarks for Ubuntu.

As a member of the Security Hardening team, you will develop automation tools to audit deployed systems for DISA-STIG and CIS benchmark compliance. You will engage with internal and external stakeholders to identify gaps and develop solutions to address security challenges. This role offers the chance to influence team and security culture, facilitate technical delivery, and guide team direction and execution. You will work closely with Canonical’s kernel team and the broader engineering organization to implement features impacting all Ubuntu users.

Day-to-day responsibilities

• Collaborate with other engineers to achieve and maintain various security certifications
• Enhance Linux cryptographic components (OpenSSL, Libgcrypt, GnuTLS, etc.) for FIPS and CC certification
• Work with external security consultants to test and validate kernel and crypto modules
• Develop security hardening benchmarks and automation for Ubuntu in partnership with external teams
• Contribute to Ubuntu mainline and upstream projects
• Communicate and collaborate internally and externally to improve security posture and deliver solutions

What we are looking for in you

• Experience with Linux cryptography APIs and debugging
• Strong software engineering fundamentals, including C development skills
• Experience with Linux system administration and shell scripting
• Knowledge of security and cryptography principles and secure coding practices
• Experience with open source libraries
• Excellent communication skills for remote collaboration

Additional skills that you might also bring

• Experience with FIPS/Common Criteria products and standards
• Experience with DISA-STIG or CIS benchmarks and audit/remediation tooling
• Experience with Linux Kernel development
• Skills in Python, OVAL, and Ansible
• Contributions to open source projects

What we offer you

We offer competitive compensation based on location, experience, and performance, with annual reviews and bonuses. Our benefits include:

• Remote work environment with biannual in-person team sprints
• USD 2,000 annual learning and development budget
• Annual compensation review
• Recognition rewards
• Annual leave, maternity, and paternity leave
• Employee Assistance Programme
• Travel opportunities and company travel benefits