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Principal Security Researcher - Linux & API Security EDR (cortex)

Posted November 27, 2025
Full-time Mid-Senior Level

Job Overview

Your Career

Are you an innovative security researcher with a deep understanding of Linux systems and a passion for protecting modern environments? Do you want to lead the charge in securing enterprise networks against the latest threats?

We're looking for a skilled professional to join our team, focusing on the critical and rapidly evolving fields of Linux and API security. You'll be a foundational member of a new and growing team dedicated to the "blue ocean" of detection and developing multiple new fields within the biggest cybersecurity enterprise in the world. This is a unique opportunity to apply your expertise and influence the future of threat prevention, helping us build cutting-edge security solutions from the ground up.

Your Impact

  • Playing a pivotal role in shaping the future of our security solutions.
  • Enhance the effectiveness of our product by designing cutting-edge protection components and developing sophisticated detection rules.
  • Research Linux OS internals, Virtualized environments, and low-level system behaviors to inform and enhance our attack prevention mechanisms.
  • Investigate and develop innovative methods for detecting threats and securing APIs, ensuring robust protection for modern applications and cloud-native environments.
  • Apply sophisticated AI and big data approaches to investigate and research large amounts of data across our clients.
  • Research and lead novel protection ideas to a production-grade level, serving as a subject matter expert.
  • Stay up to date with the latest attacker methodologies, APT campaigns, and TTPs targeting Linux systems and APIs.
  • Conduct static and dynamic reverse engineering of Linux malware to uncover new techniques and develop corresponding mitigation strategies.
  • Work closely with engineering, product management, and other research teams to translate research findings into production-grade features.

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