System Administrator - TS/SCI

System Administrator - TS/SCI Washington, DC Apply Now Back to Search 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 By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at Privacy Policy #LI-JC1 Apply Now Back to Search Success! Your application was successfully sent! Error Apply Now Not yet ready to apply? Join our talent community