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# Trellix Security Engineer

- **Company:** Guidehouse Inc.
- **Location:** McLean, VA, United States
- **Experience:** Experienced
- **Salary:** $98,000.0 - $163,000.0
- **Contract:** Permanent contract
- **Skills:** Application Integration Architecture, CompTIA Security+, Cyber Security, System Configuration, Microsoft Security Essentials, Power BI, Security Information and Event Management, Mitre Att&ck, Splunk, Data Pipelines, Servicenow
- **Published:** July 14, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9026388/trellix-security-engineer

## About the Role

* Must be able to OBTAIN and MAINTAIN a Federal or DoD "PUBLIC TRUST"; candidates must obtain approved adjudication of their PUBLIC TRUST prior to onboarding with Guidehouse. Candidates with an ACTIVE PUBLIC TRUST or SUITABILITY and maintain an active HHS/NIH clearance are preferred.
 * Minimum of THREE (3) years of hands-on experience with deploying and maintaining Trellix in an enterprise environment.
 * Minimum of a Bachelors Degree is required.
 * Deep understanding of NIST SP 800-53 and FISMA requirements.
 * Soft Skills: Strong communication and analytical thinking; ability to manage multiple concurrent priorities and deadlines.

 * Experience developing automated data pipelines or integrating APIs into Power BI dashboards.
 * Certifications: Active CompTIA Security+ CE preferred. Other certifications (CISSP, CEH, or cloud-related) are a plus.
 * Familiarity with ServiceNow or Splunk Security Essentials.
 * Knowledge of MITRE ATT&CK framework and vulnerability prioritization methodologies (e.g., EPSS, CVSS v3).
 * Prior experience within a federal or HHS environment.

## Description

* Lead the design, deployment, and maintenance of Trellix security architecture.
 * Monitor, analyze, and respond to security events and threats across endpoints and infrastructure.
 * Configure and operate endpoint protection policies and detection rules.
 * Conduct security assessments and coordinate remediation activities.
 * Integrate Trellix with enterprise systems.
 * Lead troubleshooting, triage, and root cause analysis.
 * Develop process documentation, SOPs, and system configuration hardening guides.


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