Lead Cyber Security Engineer Jobs
Listed on 2026-08-16
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IT/Tech
Cybersecurity, Network Security, Systems Engineer, Security Management & Operations
Cyber Security Lead / Subject Matter Expert (SME)
Location:
National Defense University (NDU), Fort McNair, Washington, DC
Work Schedule:
100% Onsite
Security Clearance:
Active Top Secret Clearance Required
Certification: CISSP/CISM/CCISO/GSLC (any of these)
Position Overview:
We are seeking an experienced Cyber Security Lead / Subject Matter Expert (SME) to support the National Defense University (NDU) at Fort McNair, Washington, DC. This is a hands-on technical leadership role responsible for securing enterprise endpoints, leading endpoint security initiatives, and supporting the organization's cybersecurity operations. The ideal candidate is an expert in Trellix Endpoint Security (formerly McAfee/HBSS) and has extensive experience protecting enterprise environments within DoD or other federal agencies.
This position requires a proactive cybersecurity professional who can provide technical leadership, implement security best practices, and collaborate with stakeholders to strengthen the organization's overall security posture.
Key Responsibilities:
- Serve as the technical lead and Subject Matter Expert (SME) for enterprise endpoint security.
- Administer, maintain, and optimize Trellix Endpoint Security and Host-Based Security System (HBSS) solutions.
- Monitor endpoint security posture and respond to emerging threats and vulnerabilities.
- Lead deployment, configuration, and lifecycle management of endpoint protection technologies.
- Develop and implement endpoint security policies, standards, and procedures.
- Conduct security assessments, vulnerability analysis, and remediation activities.
- Investigate security incidents and coordinate response efforts related to endpoint threats.
- Collaborate with system administrators, network engineers, and security teams to ensure secure system configurations.
- Support compliance with DoD cybersecurity policies, DISA Security Technical Implementation Guides (STIGs), RMF, and applicable security requirements.
- Provide technical guidance and mentorship to cybersecurity team members.
- Prepare technical documentation, reports, and security recommendations for leadership.
Required Qualifications:
- Active Top Secret Security Clearance (required).
- Bachelor's degree in Computer Science, Information Technology, Cybersecurity, Information Systems, Engineering, or another technical discipline.
- 8+ years of cybersecurity experience supporting enterprise environments.
- Demonstrated expertise administering and supporting:
Trellix Endpoint Security Host-Based Security System (HBSS) - Strong knowledge of:
Endpoint Detection and Response (EDR) Malware prevention and threat mitigation Endpoint hardening Vulnerability management Security incident response - Experience with Windows enterprise environments and endpoint security administration.
- Working knowledge of DoD cybersecurity frameworks, including RMF and STIG compliance.
- Excellent analytical, troubleshooting, and problem-solving skills.
- Strong verbal and written communication skills.
Preferred Qualifications:
- Experience supporting DoD or federal government environments.
- Trellix (McAfee) certifications or equivalent endpoint security certifications.
- Security+, CASP+, CISSP, or other industry-recognized cybersecurity certifications.
- Experience with SIEM platforms and enterprise security monitoring tools.
- Familiarity with Power Shell or other scripting languages for automation.
- Experience supporting enterprise vulnerability management programs.
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