ManTech International

HBSS/ESS Engineer

ManTech International • $90K — $120K *
Virginia Beach, VA 23464In-Person
Aerospace & Defense
Less than 5 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Masters degree with 3+ years of security experience, or Bachelors degree with 5+ years, or High School Diploma with 9+ years in lieu of Masters
  • Experience with HBSS and ESS
  • Familiarity with Trellix products
  • CE/OS certifications such as Linux, Windows, or VMWare
  • IAT-II level certification (e.g., CompTia Sec+)
  • Strong analytical skills and attention to detail

Responsibilities

  • Reports to Project Manager within a matrix organization
  • Builds, configures, administers, and maintains HBSS Firewalls
  • Ensures HBSS compliance with DoD security requirements
  • Installs and configures Trellix products on Microsoft and Linux endpoints
  • Maintains malware security compliance and troubleshooting via Trellix ePO console
  • Fosters a respectful and innovative team environment

Benefits

  • Work in a supportive team-driven culture
  • Opportunity for continuous skill development in security
  • Engagement with cutting-edge security technologies
  • Potential for career advancement within the organization
  • Chance to contribute to mission-critical cybersecurity initiatives
Full Job Description
General information

Requisition #

R68533

Locations

USA-VA-Virginia Beach

Posting Date

06/10/2026

Security Clearance Required

TS/SCI

Remote Type

Onsite

Time Type

Full time

Description & Requirements

MANTECH seeks a motivated, career and customer-oriented Host Based Security Systems, Endpoint Security Solutions (HBSS/ESS Engineer) to join our team in Virginia Beach, VA. This position is onsite.

Responsibilities include but are not limited to:
  • Reports Directly to the Project Manager and supports execution in a matrix organization.
  • Builds, configures, administers, and maintains HBSS Firewalls in accordance with security guidelines, applicable Task orders, and best security practices.
  • Maintains HBSS compliance with operations and tasking orders, and other DoD configuration compliance requirements.
  • Installs and configures required Trellix products, including but not limited to Trellix Endpoint Security (ENS) Client, ENS Firewall, Threat Prevention, Rogue System Detectors on enterprise Microsoft and Linux endpoints.
  • Maintains malware security compliance and troubleshooting/resolving issues remotely via the Trellix ePO console.
  • Support a team environment based on mutual respect and teamwork, dedicated to innovation and effective, efficient work practices.


Minimum Qualifications:
  • Masters degree and 3+ years of relevant security experience, or Bachelors degree and 5+ years of relevant security, or a High School Diploma and 9+ years of relevant security experience, in lieu of Masters degree
  • Experience with HBSS and ESS
  • Experience with Trelix products
  • Computing Environment/Operating System (CE/OS) certifications (ex. Linux, Windows, VMWare)
  • IAT-II level at a minimum in accordance with SECNAV M-5239.2 and DoD 8140/8570. (ex. CompTia Sec+)
  • Strong analytical skills and attention to detail


Preferred Qualifications:
  • Familiarity with the United States Navy preferred
  • Extensive experience and judgment to plan and accomplish goals and independently performs a wide variety of complicated tasks
  • Strong technical, interpersonal, written, and verbal skills


Clearance Requirements:
  • Must have a current and active TS/SCI clearance with the ability to obtain SAP access.


Physical Requirements:
  • Up to 25% travel anticipated.
  • Work will require movement from Government site to/from MANTECH site for client meetings and support functions.
  • The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which involve delivering presentations.

About ManTech International

ManTech International Corporation is an American defense contracting firm that was founded in 1968. The company provides cybersecurity, intelligence, and defense solutions to the United States Government. ManTech has over 9,000 employees and operates in 40 countries worldwide. The company's services include software development, systems engineering, and enterprise IT solutions. ManTech has been awarded numerous contracts by the U.S. Department of Defense and other government agencies.
Learn more about ManTech International
Size
9,800 employees
Market Cap
$3.7 billion
Industry
Information Technology
Net Income
$120.5 million
Founded
1968
5 Year Trend
+9.8%
Revenue
$2.5 billion
NASDAQ
MANT
* Ladders Estimates

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