# Security Software Engineer Remote from🌐 AnywhereAnnual salary Undisclosed Salary information is not provided for this position. Check our [Salary Directory](https://jobicy.com/salaries.md) to estimate the average compensation for similar roles.Department [Cybersecurity](https://jobicy.com/categories/cybersecurity.md) Employment type Full Time, Job posted21 Jul 2026Apply before21 Aug 2026Experience level Senior Views / Applies 76 / 6 [About company](https://jobicy.com/company/canonical-ltd.md) * Share About [Canonical Ltd.](https://jobicy.com/company/canonical-ltd.md) Trusted open source for enterprises [Computer Software](https://jobicy.com/company-category/software.md) * 2004 Actively Hiring Verified job posting This job post has been [manually reviewed](https://jobicy.com/tools/help-center/employee/how-does-jobicy-verify-the-legitimacy-of-remote-job-listings.md) for authenticity and compliance. ### AI Summary Canonical is seeking exceptional security-focused software engineers to integrate across product teams, focusing on threat modeling, architecture reviews, static analysis, and fuzzing. These engineers will lead security initiatives, fix vulnerabilities, and contribute to Ubuntu and open source projects. The role requires a strong academic background and deep understanding of security vulnerabilities. Canonical offers a globally distributed, remote-friendly work environment with mandatory international travel twice a year. The ideal candidate is passionate about open source and capable of working autonomously in a fast-paced, collaborative setting. ### Role DNA Job Complexity Easy Hard Pace & Pressure Relaxed Fast-paced Autonomy Level Guided Full Ownership Communication Load Independent Highly Collaborative AI Insight The role requires exceptional technical expertise in security, deep understanding of vulnerabilities, and the ability to lead security initiatives across product teams, making it a high-difficulty position. ### Salary Analysis Median Highly Competitive $160,000US Market $130k – 190k 0 $209k AI Insight The offered salary is not listed, but based on market data for Security Software Engineers in the US, the median is approximately $160,000. This role is highly specialized, so compensation is likely competitive with industry standards. ### Core Skills Required [Security](https://jobicy.com/jobs?search_keywords=Security.md) [Software Engineering](https://jobicy.com/jobs?search_keywords=Software+Engineering.md) [Threat Modeling](https://jobicy.com/jobs?search_keywords=Threat+Modeling.md) [Vulnerability Analysis](https://jobicy.com/jobs?search_keywords=Vulnerability+Analysis.md) [Open Source](https://jobicy.com/jobs?search_keywords=Open+Source.md) [Linux](https://jobicy.com/jobs?search_keywords=Linux.md) [Python](https://jobicy.com/jobs?search_keywords=Python.md) [C++](https://jobicy.com/jobs?search_keywords=C.md) [Go](https://jobicy.com/jobs?search_keywords=Go.md) [Fuzzing](https://jobicy.com/jobs?search_keywords=Fuzzing.md) ### Cover Letter Sample I am thrilled to apply for the Security Software Engineer position at Canonical. With a strong background in software engineering and a deep passion for open source security, I have extensive experience in threat modeling, vulnerability analysis, and implementing robust security features. My proficiency in C, C++, Python, and Go, combined with my track record of contributing to open source projects, aligns perfectly with the requirements of this role. I have successfully led security initiatives in previous roles, including integrating fuzzing tools and static analysis into CI/CD pipelines. My ability to work autonomously in distributed teams and my commitment to staying current with industry trends make me an ideal fit for Canonical's globally remote environment. I am excited about the opportunity to challenge and elevate security practices across Canonical's product teams. Thank you for considering my application. I look forward to the possibility of contributing to Canonical's mission and collaborating with the global open source community. I am confident that my skills and dedication will make a significant impact. Copy ### Sample Interview Questions Describe your experience with threat modeling. Can you walk us through a threat model you created for a complex system?In my previous role, I led threat modeling for a cloud-based microservices architecture. I used STRIDE to identify threats, created data flow diagrams, and collaborated with developers to prioritize mitigations. This resulted in a 30% reduction in high-severity vulnerabilities.How do you approach fixing a critical vulnerability in an open source library that you maintain?First, I assess the severity and impact. Then, I develop a patch, test it thoroughly, and engage with the community for review. I also ensure a coordinated disclosure with CVE assignment and update the package repository promptly.Can you explain a time you used fuzzing to find a vulnerability?I used AFL to fuzz a network protocol parser. After setting up the fuzzer with custom input seeds, I discovered a buffer overflow within hours. I then worked with the team to fix the issue and added regression tests.How do you stay current with security trends and vulnerabilities?I follow security mailing lists, attend conferences like Black Hat, and contribute to open source security projects. I also regularly read papers on new attack vectors and participate in CTF competitions.Describe a challenging security feature you implemented. What was the outcome?I implemented mandatory access control using AppArmor for a container runtime. The challenge was balancing security with performance. After iterative profiling and tuning, we achieved a 5% performance overhead while significantly reducing the attack surface. 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 a pioneer of global distributed collaboration, with 1200+ colleagues in 75+ countries and very few office-based roles. Teams meet two to four times yearly in person, in interesting locations around the world, to align on strategy and execution. 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 modeling, 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. Each product engineering team at Canonical reserves one or two openings for security-oriented software engineers. We also develop a number of products driven entirely by security needs, such as our AppArmor kernel investments and the Ubuntu Security Guide (USG). As the publisher of Ubuntu, we also handle long-term security response for the entire operating system and open source ecosystem. 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. Apply here if you are an exceptional security-focused software engineer, passionate about open source, and excited by Canonical’s products and mission. This role requires the ability to be productive in a globally distributed team through strong self-discipline and motivation. It also involves mandatory international travel at least twice a year, typically for one week. Location: Worldwide, this is a globally remote role ## What you’ll do Security roles might tackle any of the following: * 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 analyze 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 * 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 * A track record of going above and beyond expectations * Thorough understanding of the common categories of security vulnerabilities and how to fix them * Knowledge of modern software engineering techniques * Familiarity with open source development tools and methodologies * Skill in one or more of C, C++, Python, Go, Rust, Java, Ruby, PHP, or JavaScript/Typescript * Experience as a security champion * Experience driving security within a wider SSDLC 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 * Results-oriented, with a personal drive to meet commitments ## Optional skills we also value * Clear and effective communication with both the team and Ubuntu community members * Experience working with the Linux kernel * Experience with security certifications and knowledge of FIPS and/or Common Criteria (CC) * Experience with OVAL (Open Vulnerability Assessment Language) * Knowledge of cryptographic modules such as OpenSSL and Libgcrypt * Knowledge of low-level Linux cryptography APIs * Demonstrated ability to learn quickly * 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 recognize 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.](https://canonical.com/careers/diversity/identity) #LI-remote Show more [Apply now >](https://jobicy.com/jobs/149550-security-software-engineer.md) > Annual salary information is not provided for this position. Explore salary ranges for similar roles in our [Salary Directory ›](https://jobicy.com/salaries.md) * ![Upload CV](data:image/svg+xml;base64,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) ### Upload your resume now To unlock remote work opportunities and be discovered by global employers. This job listing has been manually reviewed by the Jobicy Trust & Safety Team for compliance with our posting guidelines, including verification of the company's legitimacy, accuracy of job details, clarity of remote work policy, and absence of misleading or fraudulent content. ## How to apply ## See a few more Similar Cybersecurity remote jobs * ![Canonical Ltd. logo](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2025/06/b4d068a9-221-1.png) Canonical Ltd. ### [Senior Security Operations Engineer](https://jobicy.com/jobs/149578-senior-security-operations-engineer.md) The Canonical Security Operations team is hiring for a Senior or Staff engineer. 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