About Us

Sophos is a global leader and innovator of advanced security solutions for defeating cyberattacks. The company acquired Secureworks in February 2025, bringing together two pioneers that have redefined the cybersecurity industry with their innovative, native AI-optimized services, technologies and products. Sophos is now the largest pure-play Managed Detection and Response (MDR) provider, supporting more than 28,000 organizations. In addition to MDR and other services, Sophos’ complete portfolio includes industry-leading endpoint, network, email, and cloud security that interoperate and adapt to defend through the Sophos Central platform. Secureworks provides the innovative, market-leading Taegis XDR/MDR, identity threat detection and response (ITDR), next-gen SIEM capabilities, managed risk, and a comprehensive set of advisory services. Sophos sells all these solutions through reseller partners, Managed Service Providers (MSPs) and Managed Security Service Providers (MSSPs) worldwide, defending more than 600,000 organizations worldwide from phishing, ransomware, data theft, other every day and state-sponsored cybercrimes. The solutions are powered by historical and real-time threat intelligence from Sophos X-Ops and the newly added Counter Threat Unit (CTU). Sophos is headquartered in Oxford, U.K. More information is available at www.sophos.com.

Role Summary

Sophos is looking for a Linux Threat Researcher to join our team! The ideal candidate has extensive knowledge of Linux internals, is fluent in assembly, and has a knack for getting to the bottom of any issue. You enjoy thinking creatively; combining your deep technical knowledge, your tenacity for innovation, and your can-do attitude to solve complex and challenging problems on a daily basis.

What You Will Do

As a member of the Linux Behavior Protection Team, you will be responsible for:

• Implementing context-aware & behavior-based detection to provide multiple layers of protection from attacks targeting Linux infrastructure
• Mapping protection & detection of attack behaviors to MITRE ATT&CK framework
• Linux kernel exploit research and detection
• Threat hunting, data mining, and using other methods of research to discover new threats to Linux and opportunities to improve protection
• Working with product teams to adapt protection technology to the rapidly evolving threat landscape
• Reverse engineering and debugging malware, understanding the complete end-to-end kill chain, from attack vector to persistent payload
• Publish research articles and whitepapers on the corporate blog

What You Will Bring

Essential:

• Deep knowledge of Linux operating system, internals and APIs
• Experience in computer security and/or threat research
• Dynamic and static malware analysis experience
• Programming experience

Desired:

• Threat hunting
• Data mining
• Reverse engineering skills
• Knowledge of exploitation techniques
• Knowledge of offensive tools and techniques

In Canada, the base salary for this role ranges from $107,000 to $179,000. In addition to base salary, we offer additional compensation including bonus eligibility and a comprehensive benefits package. A candidate’s specific pay within this range will depend on a variety of factors, including job-related skills, training, location, experience, relevant education, certifications, and other business and organizational needs.

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Ready to Join Us?

At Sophos, we believe in the power of diverse perspectives to fuel innovation. Research shows that candidates sometimes hesitate to apply if they don't check every box in a job description. We challenge that notion. Your unique experiences and skills might be exactly what we need to enhance our team. Don't let a checklist hold you back – we encourage you to apply.



What's Great About Sophos?

Sophos operates a remote-first working model, making remote work the primary option for most employees.