System Administrator- Must have an active TS / SCI Clearance, Ft. Belvoir, VA

Synertex LLC
Fort Belvoir, VA

Job Description

Job Description

Synertex is seeking a exceptionally skilled Systems Administrator to support our Classified Cyber Operations Client in Ft. Belvoir, VA, enabling high-impact red team operations through secure, resilient, and well-managed infrastructure and environments.

Benefits include competitive PTO, 11 Paid Government Holidays, a 401k with 6% match, and a comprehensive list of health care options.

Clearance: TS/SCI

RESPONSIBILITIES:
  • Administering sensitive operational and developmental networks and systems supporting DTRA Advance Red Cyber mission needs.
  • Managing Windows Active Directory environments, hypervisors, Linux and Windows virtual machines, and Apache web servers.
  • Operating and maintaining AWS cloud instances in support of program infrastructure.
  • Managing and securing network firewalls to protect sensitive environments and services.
  • Supporting modern infrastructure patterns including microservices (Kubernetes), infrastructure as code (Terraform), and containerization (Docker).

REQUIREMENTS:
  • 3+ years of experience administering sensitive networks and systems in accordance with DoD cybersecurity policies, procedures, and best practices.
  • Experience managing Windows Active Directory environments.
  • Experience with hypervisors.
  • Experience supporting Linux and Windows virtual machines.
  • Experience with Apache Web Servers.
  • Experience with AWS cloud instances.
  • Experience managing network firewalls.
  • Experience with microservices (Kubernetes), infrastructure as code (IaC) such as Terraform, and containerization tools like Docker.

DESIRED QUALIFICATIONS:

  • Strong communication skills and comfort working in a mission/customer-facing environment.
  • Willingness and ability to travel up to 15% (CONUS/OCONUS).
Posted 2026-04-10

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