Senior Systems Engineer with Security Clearance

VTG; Chantilly (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

VTG in Chantilly, VA seeks a senior IT systems engineer to support a hybrid-cloud mission infrastructure. You will provide Tier 2–4 support for technology products, configure VMware vCenter/NSX-T, maintain Linux and Windows servers, and manage AD, DNS, DFS, DHCP, and GPOs.

You will also build AWS-based Windows servers, enforce DISA STIGs, and work with Splunk, Check_MK, McAfee ePO, and BitLocker, coordinating projects in ServiceNow and documenting deployments for accreditation.

Qualifications

• BS degree or equivalent; 8+ years of relevant experience preferred.
• Experience delivering Tier 2–4 support for infrastructure and apps.
• Strong Linux and Windows server administration skills.
• Hands-on with VMware vCenter/NSX-T and VDI environments.
• Proficiency with AD, DNS, DFS, DHCP, and Group Policy.
• Familiarity with DISA STIGs, Splunk, and ITSM tools like ServiceNow.

Responsibilities

• Provide in-depth Tier 2–4 support and problem resolution for technology products, infrastructure, and applications.
• Lead engineering activities involving Linux servers, Windows servers, storage, and virtualization.
• Configure and maintain VMware vCenter and NSX-T environments.
• Perform Tier 3 engineering for virtualization, virtual desktops, and automation.
• Maintain AD, DNS, DFS, DHCP, and Group Policy; manage Windows servers in AWS.
• Enforce security posture via DISA STIGs and work with Splunk, Check_MK, McAfee ePO, BitLocker.
• Coordinate projects in ServiceNow and maintain system documentation and accreditation artifacts.

Skills

Tier 2–4 support

Linux servers

Windows servers

Active Directory

DNS

DHCP

FS/DFS

GPO (Group Policy)

VMware vCenter

VMware NSX-T

AWS

Security STIGs

Splunk

Check_MK

McAfee ePO

BitLocker

ServiceNow

Education

BS degree

Tools

VMware vCenter

VMware NSX-T

Splunk

Check_MK

McAfee ePO

BitLocker

ServiceNow

AWS

Job description

Overview The Sponsor's office is responsible for building, operating, and maintaining a hybrid-cloud mission infrastructure and associated services. The environment hosts dozens of Commercial Off-the-Shelf (COTS), Government Off-the-Shelf (GOTS), and custom applications, as well as a large-scale data lake. The infrastructure includes on-premises components deployed across multiple data centers in addition to commercial cloud resources. The Sponsor requires a highly skilled engineering team with diverse technical backgrounds and strong organizational capabilities to support system accreditation, infrastructure operations, and the documentation of system deployments across the environment. What will you do?

• Provide in-depth Tier 2 through Tier 4 support and problem resolution for technology products, infrastructure, and applications.
• Lead and perform engineering activities involving Linux servers and workstations.
• Support engineering efforts involving Windows servers, workstations, storage systems, and virtualization infrastructure.
• Configure, administer, and maintain VMware vCenter and VMware NSX-T environments.
• Perform Tier 3 engineering and support for virtualization infrastructure, including virtual servers, virtual desktops, and automation solutions.
• Support VMware Horizon Virtual Desktop Infrastructure (VDI) environments.
• Operate and maintain Active Directory, Domain Naming System (DNS), Distributed File System (DFS), and Dynamic Host Configuration Protocol (DHCP).
• Provide oversight and maintenance of Windows Group Policy.
• Build and maintain Windows servers within an Amazon Web Services (AWS) environment.
• Deploy and maintain system configuration standards in accordance with the Sponsor's security posture.
• Maintain Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs) in accordance with security requirements.
• Support the operations and maintenance of enterprise infrastructure environments.
• Work with Splunk, Check_MK, McAfee ePO, and BitLocker.
• Manage technical and infrastructure requirements using ServiceNow.
• Coordinate engineering projects, including performing technical risk assessments, deconflicting implementations, and resolving technical questions or conflicts.
• Gather infrastructure performance and utilization metrics and proactively notify the Sponsor when established thresholds are met.
• Perform data center management activities, including physical capacity management, hardware installation and commissioning, inventory management, decommissioning, removal, and destruction.
• Install and manage infrastructure components, including cables and circuits, and ensure proper cable labeling.
• Build and maintain desktop workstations and provide troubleshooting and patching support as required.
• Maintain accurate infrastructure and property inventories, including accountable property and electronic network encryption devices.
• Create and maintain system documentation supporting infrastructure deployments and accreditation activities.
• Coordinate, schedule, and deconflict IT engineering projects across the environment.
• Support incident tracking, management, troubleshooting, and resolution across multiple support tiers. Do you have what it takes?
• Active TS/SCI with Polygraph
• Typically requires BS degree and 8 years of prior relevant experience
• Demonstrated experience providing Tier 2 through Tier 4 technical support and problem resolution for technology products and applications.
• Demonstrated experience leading and performing engineering activities involving Linux servers and workstations.
• Demonstrated experience configuring and managing VMware vCenter and VMware NSX-T.
• Demonstrated experience coordinating engineering projects, including performing technical risk assessments, deconflicting implementations, and resolving technical questions or conflicts.
• Demonstrated experience operating and maintaining:
• Active Directory
• Domain Naming System (DNS)
• Distributed File System (DFS)
• Dynamic Host Configuration Protocol (DHCP)
• Demonstrated experience maintaining DISA Security Technical Implementation Guides (STIGs) in accordance with established security posture requirements.
• Demonstrated experience supporting the operations and maintenance of infrastructure environments.
• Demonstrated experience working with:
• Splunk
• Check_MK
• McAfee ePO
• BitLocker
• Demonstrated experience managing requirements using ServiceNow.