Senior Endpoint Security Engineer (CrowdStrike Falcon, Microsoft Defender, SentinelOne)

Summary: 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.

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.
  
  

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.
  
  

Preferred:

• 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.
  
  

Triangle Cyber, LLC is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to any legally protected status.