Trellix ESS SME

Trellix ESS Subject Matter Expert (SME)

Peraton is seeking a Trellix Endpoint Security System (ESS) SME to manage and optimize ESS solutions within secure DoD network environments such as SUNet. This hybrid role requires expertise in endpoint security cybersecurity best practices and compliance with DoD standards including STIGs. The SME will support the deployment operation and maintenance of ESS components critical to mission success with on-site work in Alexandria VA or Kearneysville WV.

Key Responsibilities:

• System Administration: Administer ESS infrastructure across multiple enclaves; install configure and maintain ESS servers in compliance with DoD STIGs and contract requirements.

• Deployment & Configuration: Independently deploy and optimize ESS components including Trellix Agent ENS DLPe PA RSD and TACC.

• Monitoring & Troubleshooting: Perform advanced troubleshooting (Tier IV) policy tuning and signature analysis for ENS firewall Solidcore and DLP.

• Reporting & Analysis: Generate operational reports and visualizations from security tools to assess and communicate ESS health and performance.

• Policy & Compliance: Develop and maintain ESS configurations and SOPs to align with NIST and RMF cybersecurity frameworks.

• Cybersecurity Integration: Support threat detection and response; integrate ESS with tools like ACAS Elastic and Tanium.

• Endpoint Coverage: Lead discovery efforts to ensure complete ESS deployment and endpoint coverage across the enterprise.

#USCGIMS

Basic Qualifications:

• Bachelors degree in Cybersecurity Computer Science Information Systems Management or related STEM field with 5 years of relevant experience; alternatively Associates degree with 7 years High School diploma/equivalent with 9 years or Masters degree with 3 years of experience.

• Expertise in Trellix ESS (or HBSS) modules including deployment configuration operation and troubleshooting.

• Proficient with cybersecurity tools such as ACAS Splunk ForeScout Palo Alto Firewalls and vulnerability assessment tools (Nessus SCAP STIGs SRGs).

• Strong knowledge of cybersecurity frameworks and standards (e.g. NIST RMF).

• Skilled in Microsoft Office Suite and O365 including Teams.

• Excellent analytical and problem-solving abilities capable of managing both detailed tasks and strategic objectives.

• Mid-level experience in ESS/HBSS administration or equivalent cybersecurity roles.

• U.S. Citizen with active Secret clearance or higher.

Preferred Qualifications:

• Trellix certifications (e.g. Trellix Certified Product Specialist) DISA ESS 201/301/501 Series.

• DoD 8570-compliant certifications such as Security CISSP or equivalent.

• Strong communication skills with the ability to navigate complex stakeholder environments diplomatically.

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the worlds leading mission capability integrator and transformative enterprise IT provider we deliver trusted highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land sea space air and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day our employees do the cant be done by solving the most daunting challenges facing our customers. Visit to learn how were keeping people around the world safe and secure.