Security Engineer

Guidehouse

Security Engineer specializing in Trellix architecture design and security event response for US government clients. Seeking skilled individual with strong analytical skills and security assessments experience.

Posted 5/28/2026full-timeMcLean • Maryland, Virginia • 🇺🇸 United StatesMid-LevelSenior💰 $98,000 - $163,000 per yearWebsite

Tech Stack

Tools & technologies

CloudServiceNowSplunk

About the role

Key responsibilities & impact

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.

Requirements

What you’ll need

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 is a plus.
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.

Benefits

Comp & perks

Medical, Rx, Dental & Vision Insurance
Personal and Family Sick Time & Company Paid Holidays
Parental Leave
401(k) Retirement Plan
Group Term Life and Travel Assistance
Voluntary Life and AD&D Insurance
Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts
Transit and Parking Commuter Benefits
Short-Term & Long-Term Disability
Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities
Employee Referral Program
Corporate Sponsored Events & Community Outreach
Care.com annual membership
Employee Assistance Program
Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.)
Position may be eligible for a discretionary variable incentive bonus

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Trellixsecurity architectureendpoint protectionsecurity assessmentsroot cause analysisautomated data pipelinesAPI integrationPower BIvulnerability prioritizationsystem configuration hardening

Soft Skills

communicationanalytical thinkingtime managementprioritizationmultitasking

Certifications

CompTIA Security+ CECISSPCEH