Senior Threat Researcher
Key Skills for This Role
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- Develop countermeasures to detect advanced threats based on research and intelligence from the CTU team.
- Analyze endpoint behaviors and logs to design detections using multi-source telemetry.
- Continuously refine and monitor detection rules to optimize the signal-to-noise ratio for alerts.
- Research and implement alert handling for new device ingestions, ensuring high-value signal delivery.
- Leverage internal tooling to distinguish native from standard integrations for detection accuracy.
- Collaborate on the development of internal tools, automation, and detection infrastructure.
- Act as a subject matter expert across departments including Product Management, Marketing, and Labs Research.
- Strong passion for cybersecurity research and the ability to quickly learn emerging technologies.
- Hands-on experience in scripting languages (PowerShell, Bash, Python) and use of Python data science libraries (e.g., NumPy, Pandas, Matplotlib).
- Knowledge of CI/CD pipelines, testing frameworks, and automation principles.
- Proficiency in analyzing logs from firewalls, proxies, and security infrastructure to identify anomalies.
- Familiarity with event logs, traffic pattern anomalies, and threat hunting methodologies.
- Strong understanding of endpoint detection, Linux/Unix and Windows OS internals, vulnerability identification, and workflow automation.
- Forensic analysis of memory and disk images across various OS and file system types is a plus.
- Experience in malware analysis, including static/dynamic techniques and reverse engineering (IA32/64, ARM binaries) is a plus.
- Experience with event correlation and incident reconstruction using log data is a plus.
- Network traffic analysis skills, including identification of anomalous or malicious traits is a plus.
- Solid grasp of database querying, systems architecture, and process automation for operational improvements is a nice to have.
About Sophos
Private British cybersecurity company providing AI-driven endpoint, network, email, cloud, and managed detection services to organizations worldwide.
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