FlexHired LogoFlexHired
Logo of Canonical

Canonical

Security Software Engineer

Job Summary

This role focuses on security-focused engineering within Canonical’s product teams, with responsibilities including designing and implementing security features, analyzing vulnerabilities, and contributing to open source security projects. Candidates should have a strong understanding of security vulnerabilities, secure coding practices, and Linux security, along with experience in programming languages such as C, Python, or Rust. The position involves working closely with various teams to enhance security infrastructure, achieve certifications, and develop automation for security hardening. Canonical offers benefits such as performance bonuses, professional development budgets, and flexible remote work arrangements.

Required Skills

Cryptography
Security Testing
Threat Modeling
Security Automation
Linux Security
Open Source Development
Security Vulnerabilities
Security Features
Product Security
Vulnerability Analysis
Static Analysis
Architecture Reviews
Fuzz Testing
Security Certifications
Security Infrastructure
Programming (C, Python, Go, Rust, Java, Ruby, PHP)
Security Incident Response
Security Tool Integration
CIS Benchmarks
Cryptographic APIs

Benefits

Employee Assistance Program
Remote Work Flexibility
Travel Opportunities
Performance Bonus
Maternity Leave
Paternity Leave
Learning and Development Budget
Recognition Rewards
Annual compensation review
Paid Holiday Leave

Job Description

This is a general track for security-focused engineering in every team at Canonical, across all levels of seniority. Apply here if you are already an exceptional security-focused software engineer.

Most product engineering teams at Canonical include one or two spaces for dedicated security-oriented software engineers. Their role is to challenge the entire team to think more deeply about security. They contribute to the product as engineers too, but their primary focus is to improve security through state of the art practices - from table-top threat model exercises to architecture reviews, from extended security testing with fuzzers and static analysis tools to external security analyst liaison.

We also build a number of products that are entirely motivated by security technology and requirements, such as our AppArmor kernel investments and our hardening, compliance and certification toolkits for Ubuntu.

As the publisher of Ubuntu we also handle long-term security response and hardening for the entire operating system and open source universe. Working with tens of thousands of upstreams means that we need to be fluent in every major programming language, and design, build and adopt sophisticated tools that enable us to work at scale and speed with confidence.

These roles encompass all aspects of product security, including feature development, vulnerability response, proactive security and open source community participation. All security roles interact closely with many of the other Canonical engineering and development teams, Canonical customers and our partners across the open source community.

Location: We have open roles for security specialist software engineers in every timezone.

What you'll do

Security roles might tackle any of the following:

  • Define, implement and document new security features
  • Lead security-oriented thinking in a product engineering team
  • Analyze, fix, and test vulnerabilities in Canonical and open source Software
  • Contribute to Ubuntu and upstream projects to benefit the community
  • Audit and analyze source code for vulnerabilities
  • Integrate new tools in our security infrastructure, pipelines and processes
  • Achieve and retain various security certifications
  • Extend and enhance Linux cryptographic components - specifically with modules such as OpenSSL/Libgcrypt - with the features and functionality required for country-specific compliance such as FIPS and CC certification
  • Work with external partners to develop CIS benchmarks
  • Design and develop hardening automation for Ubuntu
  • Monitor the security industry for new developments
  • Develop, test and maintain new software capabilities
  • Provide guidance and support to other engineering teams

What we are looking for in you

  • 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
  • Drive and a track record of going above-and-beyond expectations
  • A thorough understanding of the common categories of security vulnerabilities
  • Modern engineering techniques to find and fix them
  • Familiarity with open source development tools and methodologies
  • Skill in one or more of C, Python, Go, Rust, Java, Ruby or PHP
  • Experience as a security champion
  • Experience driving security within a wider SDLC 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
  • Result-oriented, with a personal drive to meet commitments
  • Ability to travel twice a year, for company events up to two weeks each

Optional skills we also value

  • Clear and effective communication with the team and Ubuntu community members
  • Experience working with Linux Kernel
  • Security Certification experience and knowledge in FIPS and/or CC
  • Experience with OVAL (Open Vulnerability Assessment Language)
  • Knowledge of and familiarity with low-level Linux cryptography APIs
  • Demonstrated high learning ability
  • Performance engineering experience

What we offer you

We consider geographical location, experience, and performance in shaping compensation worldwide. We revisit compensation annually (and more often for graduates and associates) to ensure we recognise outstanding performance. In addition to base pay, we offer a performance-driven annual bonus. We provide all team members with additional benefits, which reflect our values and ideals. We balance our programs to meet local needs and ensure fairness globally.

  • 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

About Canonical

Canonical is a pioneering tech firm at the forefront of the global move to open source. As the company that publishes Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud, we are changing the world on a daily basis. We recruit on a global basis and set a very high standard for people joining the company. We expect excellence - in order to succeed, we need to be the best at what we do. Canonical has been a remote-first company since its inception in 2004.​ Working here is a step into the future, and will challenge you to think differently, work smarter, learn new skills, and raise your game.

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.

#LI-remote



Interested in this job?

Application deadline: Open until filled

Logo of Canonical

Canonical

Canonical makes open source secure, reliable and easy to use, providing support for Ubuntu and a portfolio of enterprise-grade technologies. Founded in 2004, Canonical operates globally with team members in over 80 countries.

See more jobs
Date PostedMarch 28th, 2025
Job TypeFull Time
LocationHome based - Worldwide
SalaryCompetitive rates
Exciting fully remote opportunity for a Security Software Engineer at Canonical. Offering competitive salary (full time). Explore more remote jobs on FlexHired!

Safe Remote Job Search Tips

Verify Employer Thoroughly

Research the company's identity thoroughly before applying. Check for a professional website with contacts, active social media, and LinkedIn profiles. Verify details across platforms and look for reviews on Glassdoor or Trustpilot to confirm legitimacy.

Never Pay to Get a Job

Legitimate employers never require payment for applications, training, background checks, or equipment. Always reject upfront payment requests or demands for bank details, even if they claim it's for purchasing necessary work gear on your behalf.

Safeguard Your Personal Information

Protect sensitive data like SSN, bank details, or ID copies. Share this only after accepting a formal, written job offer. Ensure it's submitted via a secure company system or portal, never through insecure channels like standard email attachments.

Scrutinize Communication & Interviews

Watch for communication red flags: poor grammar, generic emails (@gmail), vague details, or undue pressure. Be highly suspicious of interviews held only via text or chat apps; legitimate companies typically use video or phone calls.

Beware of Unrealistic Offers

If an offer's salary or benefits seem unrealistically high for the work involved, be cautious. Research standard pay for similar roles. Offers that appear 'too good to be true' are often scams designed to lure you into providing information or payment.

Insist on a Formal Contract

Always secure and review a formal, written job offer or employment contract before starting work or sharing final personal details. Ensure it clearly defines your role, compensation, key terms, and conditions to avoid misunderstandings or scams.

Related Jobs

Full Time
Home based - Worldwide
Full Time
Home based - Worldwide
Full Time
Home based - Worldwide
Full Time
Home based - Worldwide

Subscribe Newsletter

Never miss a remote job opportunity. Subscribe to our newsletter today and receive exclusive job alerts, career advice, and industry insights delivered straight to your inbox.