Windows Systems Engineer

VTG Defense; Herndon (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

VTG Defense in Herndon, VA is seeking an experienced Windows Systems Engineer to design, implement, and maintain Windows-based infrastructure and enterprise cybersecurity platforms, including Trellix solutions, across a mission-focused environment.

The role emphasizes threat detection and response, Active Directory administration, and modernization of legacy systems, with a Top Secret clearance with polygraph and 16+ years of relevant experience preferred.

Qualifications

• Security clearance: Top Secret with Polygraph.
• Bachelor's or Master's degree in a related field.
• 16+ years of experience in systems engineering, cybersecurity engineering, or Windows/Linux administration.
• Experience with enterprise cybersecurity operations in large environments.
• Experience with Trellix products: ENS, ePO, EDR, TIE, DXL.
• Experience with DLP tools and network monitoring solutions.
• Strong Active Directory administration and troubleshooting skills.
• Experience with AWS/Azure and virtualization in enterprise networks.
• Ability to rapidly learn Trellix platforms and related cybersecurity tools.

Responsibilities

• Administer and support Windows and Linux systems within enterprise environments.
• Deploy, configure, and maintain Trellix tools (ENS, ePO, EDR, TIE, DXL).
• Implement and support DLP solutions and network monitoring.
• Support Active Directory architecture, administration, and troubleshooting.
• Monitor, detect, and respond to cybersecurity threats using enterprise security tools.
• Support planning and modernization of system architectures and legacy infrastructure.
• Conduct system tuning, configuration, and performance optimization for enterprise platforms.

Skills

Active Directory administration

Threat detection and response

Enterprise cybersecurity operations

Trellix ENS

Trellix ePO

Trellix EDR

Trellix TIE

Trellix DXL

Windows/Linux systems administration

Cloud services (AWS, Azure)

Education

Bachelor's degree in a related field

Master's degree in a related field

Tools

Trellix ENS

Trellix ePO

Trellix EDR

Trellix TIE

Trellix DXL

DLP tools

Network monitoring solutions

Job description

Overview

We are seeking an experienced Windows Systems Engineer to support a mission-focused enterprise environment, responsible for designing, implementing, and maintaining Windows-based infrastructure and enterprise cybersecurity platforms, including Trellix security solutions. The ideal candidate will support endpoint security operations, threat detection and response capabilities, and ensure system availability, performance, and compliance across complex enterprise environments.

What will you do?

• Administer and support Windows and Linux systems within enterprise environments
• Deploy, configure, and maintain Trellix security tools including ENS, ePO, EDR, TIE, and DXL
• Implement and support Data Loss Prevention (DLP) solutions, including network monitoring and prevention capabilities
• Support Active Directory architecture, administration, and troubleshooting
• Monitor, detect, and respond to cybersecurity threats using enterprise security tools and frameworks
• Support planning and implementation of new system architectures and modernization of legacy infrastructure
• Conduct system tuning, configuration, and performance optimization for enterprise platforms

  Do you have what it takes?

  • Must have a Top Secret Clearance with Polygraph
  • Bachelor's or Master's degree in a related field
  • Minimum of 16 years of experience in systems engineering, cybersecurity engineering, or Windows/Linux systems administration
  • Strong experience with cybersecurity operations and engineering in enterprise environments
  • Experience with Trellix Endpoint Security (ENS), ePolicy Orchestrator (ePO), Endpoint Detection and Response (EDR), Threat Intelligence Exchange (TIE), and Data Exchange Layer (DXL)
  • Experience with Data Loss Prevention (DLP) tools and network monitoring solutions
  • Strong background in Active Directory administration and troubleshooting
  • Experience with enterprise databases, virtualization, cloud services (AWS, Azure), and networked environments
  • Ability to quickly develop expertise with Trellix and related cybersecurity platforms
  • Familiarity with cyber threat identification, mitigation, and incident response strategies
  • Experience designing and implementing enterprise-scale system architectures

  Preferred Qualifications

  • Experience writing technical documentation, briefings, and operational reports
  • Experience leading or participating in technical exchange meetings and stakeholder engagements
  • Experience working with inter-agency, intra-agency, and external partners and vendors
  • Experience supporting Certification & Accreditation (C&A) or Authorization & Accreditation (A&A) processes
  • Experience supporting deployment planning, execution, system configuration, and policy development
  • Experience monitoring system health, availability, and performance in enterprise environments
  • Experience analyzing operational data and providing technical recommendations
  • Experience leading or supporting technical troubleshooting efforts, including log analysis and vendor coordination
  • Strong analytical, communication, and problem-solving skills