Endpoint Security Administrator - Top Secret Clearance

ManTech; Miami (FL); On-site; USD 110,000 - 160,000; Full time

Job summary

ManTech in Doral, FL seeks a motivated Endpoint Security System Administrator to join our team. You will install, configure, and maintain ESS/HBSS modules, enforce endpoint policies, deploy agents, run vulnerability scans, and support security baselines across enterprise systems.

The ideal candidate has 5+ years of security or systems administration, relevant certifications, and a current TS clearance. This hands-on role collaborates with cyber leadership to strengthen network defense and

Qualifications

• Bachelor's degree in Computer Science, IT, Cybersecurity or related field with 5+ years of experience in systems/security administration
• Master's degree with 3+ years of relevant experience considered
• Associate's degree with 7+ years of relevant experience
• High school diploma with 9+ years of relevant experience considered
• Experience administering Trellix/McAfee ESS/HBSS policies, modules, and ePO
• Strong background in endpoint protection, host intrusion prevention, rogue system detection, and security compliance auditing
• Experience maintaining baseline configurations, patch management schedules, and security event logs
• Experience creating, maintaining, and communicating complex technical documentation and security workflows

Responsibilities

• Installing, configuring, maintaining, and administering ESS/HBSS modules and endpoint security capabilities
• Managing endpoint policy enforcement, agent deployments, vulnerability scanning, and baseline compliance
• Conducting routine system troubleshooting, event monitoring, threat detection, and incident response coordination
• Maintaining system baselines, agent software repositories, and configuration management controls for security tools
• Collaborating with cross-functional teams to optimize network defense
• Performing security updates, patches, engine upgrades, and baseline verification across assets
• Recommending and implementing continuous process improvements to ESS management

Skills

Endpoint security

Policy enforcement

Incident response

Documentation

Vulnerability management

Education

Bachelor's degree in CS/IT/Cybersecurity

Master's degree

Associate's degree

High school diploma

Tools

Trellix/ePolicy Orchestrator

ACAS

Job description

ManTech in Doral, FL seeks a motivated Endpoint Security System Administrator to join our team. You will install, configure, and maintain ESS/HBSS modules, enforce endpoint policies, deploy agents, run vulnerability scans, and support security baselines across enterprise systems.

The ideal candidate has 5+ years of security or systems administration, relevant certifications, and a current TS clearance. This hands-on role collaborates with cyber leadership to strengthen network defense and