Systems Engineer - TS/SCI Full Scope Polygraph with Security Clearance

Zachary Piper Solutions is seeking a Systems Engineer - TS/SCI Full Scope Polygraph to support a secure data center environment in the Reston, VA area. The Systems Engineer - TS/SCI Full Scope Polygraph role requires to work standard business hours in the SCIF Monday - Friday. The ideal candidate for the Systems Engineer - TS/SCI Full Scope Polygraph will have strong experience in Linux and Windows systems engineering and network administration, supporting large enterprise environments. Responsibilities for the Systems Engineer - TS/SCI Full Scope Polygraph include: * Oversee, troubleshoot, and manage network activity for large enterprise customer data networks

* Collaborate with engineering teams to support customer project requests

* Provide high-level technical expertise for LAN and WAN environments

* Recommend improvements to network and systems performance, efficiency, and security Requirements for the Systems Engineer - TS/SCI Full Scope Polygraph include: * Active TS/SCI clearance with Full Scope Polygraph

* 3+ years of systems and network administration/engineering experience

* Strong experience with Red Hat Enterprise Linux (RHEL)

* Knowledge of key networking technologies and protocols including EIGRP, BGP, SD-WAN, and MPLS

* Experience with WAN, LAN, firewalls, and Cisco router/switch configuration

* Proficiency in both Linux and Windows environments

* Previous experience with VMware, including building and deploying virtual machines Compensation for the Systems Engineer - TS/SCI Full Scope Polygraph: * $125,000 - $200,000 annually

* Full comprehensive benefits package including medical, dental, vision, 401(k), PTO, and sick leave as required by law

* This job opens for applications on 12/10/2025. Applications will be accepted for at least 30 days from the posting date. Keywords: Systems Engineer, Linux Network Engineer, Network Administrator, RHEL, Linux, Windows, Cisco, ASA, Router, Switches #LI-AR2 #LI-ONSITE