Sr. Network Engineer

REQUIRES AN ACTIVE/EXISTING TS/SCI WITH CI POLYGRAPH - NO REMOTE WORK

Location: Reston, VA

We are seeking an experienced Senior Network Engineer to provide network design, engineering, implementation, and operational support for a highly secure enterprise IT environment.

The Senior Network Engineer will design, implement, maintain, and troubleshoot complex LAN/WAN environments, site-to-site VPNs, point-to-point and point-to-multipoint connections, firewalls, and secure network communications paths. This position will also support network architecture, data flows, firewall rules, encryption devices, and multi-level security environments.

The ideal candidate will have strong hands-on networking experience and the ability to troubleshoot complex network issues while developing engineering solutions that improve performance, security, reliability, and efficiency.

Key Responsibilities

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• Design, engineer, implement, and maintain enterprise LAN and WAN environments.
• Design and support site-to-site VPNs, point-to-point, and point-to-multipoint network connections.
• Troubleshoot complex network issues, including port security, VLAN configurations, connectivity issues, and network outages.
• Install, configure, maintain, and troubleshoot firewalls and network security devices.
• Configure, key, maintain, and perform software upgrades on TACLANE encryption devices.
• Manage network activities, data flows, firewall rules, and secure communication paths.
• Develop network topologies to securely deliver content and data from specific providers to end users.
• Provide technical recommendations and implement approved engineering solutions.
• Develop engineering designs and plans for the installation, integration, testing, maintenance, expansion, and upgrade of network environments.
• Conduct network engineering studies to determine requirements for **bandwidth, data throughput