Senior Endpoint Security Lead | DoD Compliance & IR

NS4 Inc; Virginia, Northern (IL, KY); Hybrid; USD 120,000 - 160,000; Full time

Job summary

NS4 Inc. is seeking an experienced Endpoint Security Administrator (Senior/SME) to join the Cyber Security Services team at Fort Lee, VA.

The role focuses on securing the DeCA enterprise's endpoint defenses and ensuring compliance with DoD requirements. The ideal candidate brings deep technical expertise in endpoint protection, incident response, and policy coordination, with strong communication skills and proactive collaboration across business units.

Qualifications

• Active DoD Secret Clearance required.
• IT 521 – Endpoint Security Administrator certification.
• Cyber 212 – Cybersecurity Service Provider (Infrastructure Support) certs.
• 7+ years IT with ≥3 years in endpoint security.
• Experience with Trellix ePolicy Orchestrator (ePO) on-prem and cloud.
• Knowledge of NIST 800-53, RMF and DoD STIGs.
• Endpoint Security Solutions (ESS) Administrator 202 certificate required.
• HBSS Advanced 301 & 501 highly recommended.

Responsibilities

• Ensure compliance with DoD 8140 Cyber Workforce qualification requirements.
• Configure, deploy, and maintain Endpoint Security components and policy management.
• Perform On-Access/On-Demand Scans and manage firewall/web control options.
• Develop and maintain DLP rules and application whitelisting.
• Collaborate with DoD and agency directives change control processes.
• Coordinate with 3rd-party providers and internal technical teams.
• Participate in Incident Response and resolve endpoint tickets within SLAs.
• Maintain endpoint posture, system configuration, and monitoring.
• Analyze syslog/packet data, perform subnetting, and integrate systems across Windows and Linux.
• Generate and coordinate CMRS and compliance reports.

Skills

Communication skills

Incident response

Policy coordination

Security architecture

DoD compliance

Education

DoD 8140 certifications

IT 521 – Endpoint Security Administrator

Cyber 212 – Cybersecurity Service Provider

Endpoint Security Administrator (ESS 202)

HBSS Advanced 301 & 501

Tools

McAfee/Trellix ePO

ENS

DLP

Rogue System Detection

pxGrid

APIs

SAML

Okta

ODBC

Job description

NS4 Inc. is seeking an experienced Endpoint Security Administrator (Senior/SME) to join the Cyber Security Services team at Fort Lee, VA.

The role focuses on securing the DeCA enterprise's endpoint defenses and ensuring compliance with DoD requirements. The ideal candidate brings deep technical expertise in endpoint protection, incident response, and policy coordination, with strong communication skills and proactive collaboration across business units.