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# Network Engineer (TS/SCI w/ Poly)

- **Company:** JTEC Consulting
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Salary:** $145,000.0 - $170,000.0
- **Contract:** Permanent contract
- **Skills:** Access Control List, Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Cisco IOS, Cloud Computing, Information Systems, Computer Networks, System Configuration, Data Centers, Enhanced Interior Gateway Routing Protocol, Trunking, Fiber Channel over Ethernet, Network Topologies, Storage Area Network (SAN), Subnetting, Python (Programming Language), Network Security, Network Layer, Network Architecture, Network Monitoring, Routing, Network Segmentation, Open Shortest Path First (OSPF), Performance Tuning, Ansible, Virtual Local Area Networks, Dynamic Routing, Computer Network Operations, Nx-os, Fibre Channel, HybridCloud, Data Center Networking, Information Technology, Routing & Switching, Open Network Automation Platform, Cisco
- **Published:** October 14, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9239858/network-engineer-tssci-w-poly

## About the Role

* U.S. citizenship
 * Current TS/SCI with agency-specific polygraph required for consideration
 * Bachelor's degree in Computer Science, Information Systems, or a related technical discipline (equivalent years of direct experience may be considered in lieu of a degree)
 * 5+ years of dedicated hands-on experience configuring and administering Cisco IOS and/or Cisco NX-OS within enterprise data center environments
 * Effective written and verbal communication skills to work as part of a collaborative, cross-functional team

Core Technical Competencies:

 * Demonstrated expertise in configuring and troubleshooting VLANs, trunking, subnets, and inter-VLAN routing
 * In-depth practical knowledge of dynamic routing protocols and network security implementations
 * Demonstrated track record leading enterprise Cisco implementations, infrastructure migrations, and network operations management
 * Experience working within Agile/Scrum delivery models
 * Demonstrated ability to troubleshoot issues independently while partnering effectively with multidisciplinary systems, cloud, and security teams, * Data Center Architecture: Direct experience configuring Top-of-Rack (ToR) switch deployments and data center fabric topologies
 * Storage Networking: Familiarity with Storage Area Network (SAN) configuration, including Fibre Channel, FCoE, or iSCSI environments
 * Cloud and Automation: Exposure to hybrid cloud connectivity (AWS Direct Connect, Azure ExpressRoute) and network automation scripting (Python, Ansible)
 * Certifications: Active Cisco certifications (CCNP Enterprise, CCNP Data Center, or CCIE) are highly desirable

#CJ
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## Description

JTEC Consulting is seeking a Network Engineer to support engineering, maintaining, and securing enterprise data center network infrastructure in a mission-critical environment. This Network Engineer will be an essential contributor within an Agile delivery framework blending hands-on engineering with strategic optimization to support the modernization of the customer's hybrid cloud platform. Qualified candidates will demonstrate a deep technical mastery of Cisco switching and routing platforms and have the initiative to drive operational excellence autonomously and collaboratively. A current security clearance with agency-specific polygraph is strictly required for consideration., * Data Center Operations: Manage, configure, and maintain mission-critical data center network infrastructure running Cisco IOS and Cisco NX-OS platforms

 * Network Segmentation and Routing: Design, deploy, and troubleshoot complex Layer 2 and Layer 3 architectures, including VLANs, advanced routing protocols (OSPF, BGP, EIGRP), and access control lists (ACLs)
 * Security and Compliance: Implement and uphold robust network security policies, segmentation, and perimeter controls across secure environments
 * Hybrid Cloud Transformation: Collaborate with agile cross-functional engineering teams to integrate on-premises data center networking with hybrid cloud architectures
 * Optimization and Performance Tuning: Monitor network health, diagnose throughput and latency bottlenecks, and execute configuration tuning to optimize network traffic processing
 * Implementation and Deployment: Lead hardware provisioning, baseline configurations, operating system upgrades, and rollout of new network solutions with minimal service disruption
 * Documentation and Standards: Maintain comprehensive network topology diagrams, standard operating procedures (SOPs), and change-management documentation