Windows Systems Engineer

VTG; Herndon (VA); On-site; USD 120,000 - 150,000; Full time

Job summary

VTG seeks an experienced Windows Systems Engineer to design, implement, and maintain Windows-based infrastructure and enterprise cybersecurity platforms in a mission-focused environment. You will support endpoint security operations and threat detection, ensuring system availability and compliance across complex enterprises.

The role requires deep experience with Trellix ENS/ePO/EDR/TIE/DXL, DLP, and Active Directory, plus cloud exposure (AWS/Azure).

Qualifications

• Top Secret Clearance with Polygraph required.
• 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 Trellix security platforms (ENS, ePO, EDR, TIE, DXL).
• Experience with Data Loss Prevention and network monitoring solutions.
• Strong Active Directory administration and troubleshooting background.
• Experience with enterprise databases, virtualization, cloud services (AWS, Azure).
• Ability to quickly develop expertise with Trellix platforms.
• Familiarity with cyber threat identification, mitigation, and incident response.

Responsibilities

• Administer Windows and Linux systems in enterprise environments.
• Deploy, configure, and maintain Trellix security tools (ENS, ePO, EDR, TIE, DXL).
• Support DLP solutions and network monitoring capabilities.
• Manage Active Directory architecture and troubleshooting.
• Monitor, detect, and respond to cybersecurity threats with enterprise tools.
• Plan and implement new system architectures; modernize legacy infra.
• Tune systems for performance and availability; perform RCA and log reviews.
• Collaborate with stakeholders to align security posture with mission requirements.
• Monitor system health and performance to ensure operational readiness.

Skills

Top Secret Clearance

Cybersecurity ops

Windows/Linux admin

Communication skills

Problem solving

Technical documentation

Education

Bachelor's or Master's degree

Tools

Trellix ENS

ePO

EDR

TIE

DXL

DLP tools

Network monitoring

Active Directory

AWS

Azure

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
• Perform root cause analysis, log reviews, and troubleshooting of system and security issues
• Collaborate with stakeholders to ensure security posture aligns with mission and operational requirements
• Monitor system health, availability, and performance metrics to ensure operational readiness

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