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Palo Alto Networks Logo Palo Alto Networks · IT - Software Development

Principal/ Senior Security Researcher Linux & API Security EDR (Cortex)

Israel, Tel Aviv · Job Posted April 02, 2026
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Job Description

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 Security. You'll be a foundational member of a new and growing team dedicated to the blue ocean of detection, developing multiple new capabilities within the largest 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.

Job Responsibility

  • Play a pivotal role in shaping the future of our security solutions
  • Enhance product effectiveness by designing advanced protection components and developing sophisticated detection rules
  • Research Linux OS internals, virtualized environments, and malware behaviors to inform and strengthen our attack prevention mechanisms
  • Apply advanced AI and big data approaches to investigate and analyze large-scale datasets across our client base
  • Lead research on novel protection concepts and bring them to production-grade quality, serving as a subject matter expert
  • Stay up to date with the latest attacker methodologies, APT campaigns, and TTPs targeting Linux systems
  • Conduct static and dynamic reverse engineering of Linux malware to uncover new techniques and develop mitigation strategies
  • Collaborate closely with engineering, product management, and other research teams to translate research findings into production features

Requirements

  • 5+ years of experience in cybersecurity research, with a proven track record of impactful projects
  • Good knowledge of Linux OS internals, including both user and kernel space
  • Solid knowledge of the cyber threat landscape, modern malware techniques, and APTs
  • Hands-on experience in real-world threat hunting, incident response, or detection engineering
  • Proficiency in programming languages such as Python, C, and/or C++, with a strong understanding of system-level programming and APIs
  • Excellent problem-solving skills and a passion for cybersecurity innovation
  • Ability to work independently, take initiative, and collaborate effectively in a team environment

Nice to have

  • Background in EDR/XDR products or security solution development
  • Experience in reverse engineering, including familiarity with debugging and disassembly tools such as GDB, IDA Pro, or Ghidra
  • Experience in advanced data analysis, statistics, or machine learning for security applications
  • Experience with Linux kernel development or vulnerability research
  • Familiarity with virtualization platforms (e.g., ESXi/vCenter)
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