Demo

System Administrator - TS/SCI

The Fountain Group
Washington, DC Contractor
POSTED ON 10/1/2026
AVAILABLE BEFORE 11/30/2026

Top Secret/SCI with Active Full Scope Polygraph – must be active prior to start

100% Onsite near Washington, DC
Pay: $75.00-82.76/hour W2 only.
Duration: 5 yrs

 

Position Overview

We are seeking an experienced Linux-focused System Administrator to support a mission-critical program within the Intelligence Community. This is an on-site position in a Sensitive Compartmented Information Facility (SCIF) environment requiring a TS/SCI clearance with an active Full Scope Polygraph prior to consideration. The successful candidate will be responsible for the day-to-day administration, security compliance, and operational health of complex Linux-based infrastructure spanning virtualized environments, container platforms, and classified networked systems.

The Systems Administrator operates with a high degree of independence and serves as a technical authority on Linux systems engineering, PKI/cryptographic policy enforcement, storage management, IP networking, and security compliance. This role carries significant responsibility for System Security Plan (SSP) maintenance, STIG implementation, and supporting Secure Telephone Equipment/Network (STE/STN) infrastructure within a heavily regulated RMF/NIST framework.
 


QUALIFICATIONS: 
Top Secret/SCI with Active Full Scope Polygraph – must be active prior to start

Bachelor's degree preferred; equivalent experience considered
5 years of system administration experience in classified or secure DoD/IC environments.
 
Required Qualifications:
•              Active TS/SCI clearance with Full Scope Polygraph - must be active prior to start
•              Deep hands-on Linux proficiency across RHEL, Rocky Linux, and/or CentOS
•              Demonstrated experience with DISA STIGs and SCAP compliance scanning
•              Working knowledge of NIST SP 800-53 controls and RMF process
•              Experience with SSP development and A&A/ATO activities
•              Hands-on STE/STN installation, configuration, and support experience
•              Solid understanding of PKI/TLS/cryptographic standards including DoD PKI and FIPS enforcement
•              Strong IP networking fundamentals and host-based firewall management
•              Experience with container platforms (Docker, Podman, Kubernetes, or OpenShift)
•              Experience with virtualization platforms (VMware vSphere, KVM/QEMU)
•              Storage management experience with NAS, SAN, LVM, and/or distributed storage
•              DoD 8140 IAT Level II compliance (Security , CASP , or equivalent)
 
Desired Skills
•              Experience with Ansible, Puppet, SaltStack, or Chef
•              Proficiency in Bash and Python scripting
•              OpenShift Container Platform experience in classified deployments
•              Experience with cross-domain solutions (CDS)
•              Familiarity with DoD cloud environments (AWS GovCloud, C2S)
•              Red Hat RHCSA or RHCE certification


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Salary : $75 - $83

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