About The Position

Triangle Cyber is seeking a Senior Endpoint Security Engineer for a federal client to design, deploy, and operationalize active, behavior-based endpoint detection and response capabilities across a large enterprise network. Leveraging platforms like CrowdStrike Falcon, Microsoft Defender, SentinelOne, and Splunk, you will play a pivotal role in safeguarding this expansive network.

Requirements

  • U.S. Citizenship required.
  • 13+ years of relevant experience in cybersecurity engineering or infrastructure security roles.
  • Experience with enterprise-grade EDR/XDR platforms (CrowdStrike Falcon, Microsoft Defender, and/or SentinelOne SIEM) across extensive endpoint environments
  • Bachelor’s degree in Computer Science, Cybersecurity, Information Systems, or equivalent experience (17 years total).
  • Proficiency in administering endpoint platforms across various operating systems.
  • Expertise in behavioral analysis, threat hunting, and using query languages like SQL, KQL, and YARA.
  • Strong programming skills in PowerShell, Python, or Bash for automation.
  • Fluency in using AI/ML technologies to automate security activities.
  • Ability to balance security controls with business operations, ensuring minimal disruption.
  • Experience in crisis leadership, operational scale management, and policy automation.

Nice To Haves

  • GIAC Certified Enterprise Defender (GCED), GCIH, or GCFA certification.
  • CISSP certification.
  • Vendor-specific credentials, such as CrowdStrike Certified Falcon Administrator or Microsoft Certified: Security Operations Analyst Associate.

Responsibilities

  • Engineer, deploy, and maintain Next-Gen Antivirus (NGAV) and Endpoint Detection & Response (EDR/XDR) agents across a diverse range of endpoints.
  • Implement behavioral protections against zero-day malware and advanced persistent threats.
  • Collaborate with application owners and business units to establish baseline behavior profiles.
  • Manage allowlisting, exception workflows, and phased ring deployments to ensure seamless protection.
  • Support SOC investigations and collaborate with system owners for enterprise security.
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