Zachary Piper Solutions is seeking a Network Engineer – TS/SCI FSP to support a world leading global technology organization in the Annapolis Junction, MD area. The Network Engineer – TS/SCI FSP role requires 100% onsite work in a SCIF and an active TS/SCI with Full Scope Polygraph clearance. Responsibilities for the Network Engineer – TS/SCI FSP include: • Manage, monitor, and troubleshoot large‑scale enterprise networks within a secure environment • Support routing, switching, and network infrastructure projects across LAN/WAN • Optimize network performance, availability, and security across mission systems • Collaborate with cross‑functional engineering teams on customer requests and new implementations • Provide advanced technical guidance on routing protocols, network segmentation, and secure connectivity • Document network changes, configurations, and best practices Requirements for the Network Engineer – TS/SCI FSP include: • Active TS/SCI with Full Scope Polygraph • 5+ years of network engineering or network administration experience in enterprise environments • Strong expertise with routing and switching technologies including EIGRP, BGP, MPLS, and SD‑WAN • Proficiency with Cisco routers, switches, and firewalls (ASA or similar) • Experience supporting LAN/WAN architecture, network security, and enterprise connectivity • Familiarity with Linux and Windows environments • VMware experience deploying or maintaining virtualized network resources is a plus Compensation for the Network Engineer - TS/SCI FSP: $140,000 – $190,000 plus comprehensive benefits including Medical, Dental, Vision, 401(k), PTO, Holidays, and Sick Leave as required by law. This job opens for applications on October 22, 2026, and will accept applicants for at least 30 days. Keywords: TS/SCI FSP, Full Scope Polygraph, Sr. Network Engineer, Network Engineering, Cisco, Routing, Switching, MPLS, SD‑WAN, BGP, EIGRP, LAN/WAN, Firewalls, ASA, Linux, RHEL, VMware #LI-ONSITE #LI-JA1