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Senior Security Researcher - Cloud & Kubernetes (Cortex)

Israel, Tel Aviv · Job Posted June 16, 2026
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Job Description

If you are an innovator at heart and passionate about redefining how organizations secure modern environments end-to-end, we're looking for you. This is an opportunity to join an exceptional group of researchers working on a startup-level product within the largest security company, helping revolutionize how organizations protect their Kubernetes and hybrid cloud environments.

Job Responsibility

  • Contribute to a team of talented security researchers focused on defending organizations as they transition from on-premises data centers to modern cloud and Kubernetes infrastructure
  • Drive the execution of research initiatives to uncover novel techniques for detecting and responding to sophisticated attacks targeting hybrid and cloud-native environments
  • Define and prioritize detection use cases, relevant datasets, and innovative analytic approaches combining runtime visibility and posture management across diverse platforms
  • Stay up to date with the latest attacker methodologies, APT campaigns, and TTPs to ensure our detection capabilities stay ahead of evolving threats in both legacy and cloud contexts
  • Simulate real-world attacks and perform deep behavioral analysis to inform and validate detection content
  • Collaborate across engineering, product management, and go-to-market teams to deliver impactful security solutions
  • Share insights with the security community through blogs, conference talks, and publications

Requirements

  • 5+ years in security research with a proven track record of driving impactful projects
  • Deep expertise in cloud-native security, with strong focus on Kubernetes, containers or major cloud providers (AWS, Azure, GCP, OCI) or Linux internal
  • Experience developing or working with detection and response products, such as XDR, EDR, or cloud workload protection platforms
  • Excellent communication skills, with the ability to articulate complex research findings and drive alignment across diverse teams
  • Proficient in hands-on coding and scripting (e.g., Python)

Nice to have

  • Experience working with large-scale data pipelines and analytics (e.g., GCP BigQuery, Dataflow)
  • Familiarity with Kubernetes threat modeling frameworks (e.g., MITRE ATT&CK for Containers)

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