Infrastructure Engineer TS/SCI w/ poly

Clearance Level
Top Secret SCI + Polygraph
Systems Engineering
Chantilly, Virginia

REQ#: RQ100676

Travel Required: None
Requisition Type: Regular

Join our award-winning Insider Threat Detection program manned by a multi-disciplinary team of system and data engineers, data scientists, software developers, intelligence analysts, and investigators to provide insider threat detection and counterintelligence services. This program provides an opportunity to further advance cutting-edge technology, products, and services for a large Government agency to detect and mitigate insider threats. Our program takes data from multiple sources in any format (structured or unstructured), transforms it into interpretable fragments, and allow our engines, to categorize, quantify, distill, and display results for human analysts to interpret. Team members work closely with esteemed customers to develop solutions that allow them to carry out high-stakes national security missions. Our technology stack is built on cutting edge hardware and software with multiple Windows and Linux environments interfacing with multi-petabyte data processing and analytic platforms all designed, built, and maintained by our team. The field of insider threat detection and mitigation is evolving and growing, and our program needs highly innovative individuals.

General Dynamics Mission Systems has an immediate opening for an Infrastructure Engineer who is responsible for expanding the insider threat infrastructure with new and innovative solutions that address continually evolving needs. The successful candidate will configure and maintain existing infrastructure components, implement upgrades, utilize management tools to monitor and report on the reliability of the environment.

Majority of the work will be performed in Chantilly, Virginia, which is located approximately 25 miles west of Washington D.C., near the Dulles International Airport.


  • Maintaining and deploying systems by installation, configuration, patching, and upgrades of hardware, operating systems and assigned application software.
  • Monitor and manage system performance, including triage and resolution activities for performance related incidents, customer request and/or identified trends.
  • Initiate and manage vendor support and coordinate required support actions.
  • Assist in technical direction discussion(s) and planning within team and outside team.
  • Represent technical areas on project teams.
  • Perceived and demonstrated SME for specific areas/technologies.
  • Provides upgrade recommendations, supporting rationale, and cost estimates for 5 year plan
  • Manage hardware and software life-cycles and maintaining applicable vendor relationships (end-of life tracking, licenses and support contracts)
  • Participate in and conducting applicable accreditation support (scans, automation, auditing)
  • Assess, prioritize, and size features
  • Contribute to a cross functional agile team


  • Experience with both cloud and on-prem infrastructure
  • Experience designing and implementing on premise cloud architecture using VMware vSphere
  • Wide comprehension of how various IT infrastructure components work together, including Servers/Workstations, network equipment, Big Data infrastructure, data storage management, enterprise software application, and on-premise cloud solutions
  • Expert in Microsoft Enterprise Infrastructure components such as Active Directory, Domains and Trusts, DNS, DHCP, SQL, Exchange, Clusters
  • Experience with IT workstation environments and Virtual Desktop Infrastructure (VDI)
  • Comfortable working on site in a secure classified environment
  • Experience implementing storage technologies to include Fiber Channel SAN and Network Attached Storage
  • Experience configuring Local Area and Wide Area Networks.
  • Experience configuring Firewall policies and NAT polies
  • Experience engaging with vendors to allocate budgets for IT purchases and plan procurements
  • Experience with developing disaster recovery and COOP plans is a plus
  • Experience designing and implementing Hadoop (HDFS, Kafka, Impala/Hive)
  • Experience with UNIX/Linux environments
  • Experience designing and integrating firewall solutions
  • Experience with Cross Domain Solutions (CDS) is a plus
  • Experience integrating hardware solutions into Enterprise Data Centers
  • Understanding of RESTful service and APIs
  • Working experience with Red Hat Enterprise Linux
  • Written and verbal ability with emphasis on working with external clients
  • DoD 8570 Compliant

Bachelors degree in Engineering, Computer Science, Systems Engineering, or other computer or information technology-related field plus a minimum of 7 years relevant experience or an Associate’s degree and 10 years of experience.


A TS/SCI security clearance with the ability to obtain a Polygraph is required at time of hire.  Candidates must be able to obtain the Polygraph within a reasonable amount of time from date of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

This position requires being fully vaccinated against COVID-19 by December 8, 2021 or the start date, if after December 8.

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.