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# Network Systems Engineer

- **Company:** Everforth Apex
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Salary:** $135,200.0 - $156,000.0
- **Contract:** Temporary contract
- **Skills:** IEEE 802.1Q, Link Aggregation (Ethernet), Border Gateway Protocol, Spanning Tree Protocols, Catalyst (Software), Cisco PIX, System Configuration, EtherChannel, Trunking, Virtual Private Networks (VPN), Cisco Nexus Switches, Open Shortest Path First (OSPF), Remote Access Technology, Virtual Local Area Networks, Wide Area Networks, Network Routers, Apex Code, Dynamic Routing, Computer Networking Systems, Firewalls (Computer Science), Juniper, Build Management, Palo Alto Networks, Firepower, Cisco
- **Published:** August 14, 2026
- **Apply:** https://www.dice.com/job-detail/ec5ee170-24cb-478f-a486-6d009caf34d9

## About the Role

* Experience Configuring, maintaining, and troubleshooting enterprise Layer 2 switching (Catalyst, Nexus, EX, QFX)
 * Experience with VLAN design, trunking (802.1Q), inter-VLAN routing, and STP/RSTP/MST management
 * Experience with EtherChannel/LACP for redundancy and performance

## Description

Apex Systems has an Immediate Need for a Sr. Network Systems Engineer in Washington D.C Area (Bolling AFB) !!! This will be an estimated "12+ Month Contract" opportunity, supporting one of our Largest Government Clients on the East Coast! Please See Below for all Position Details & How To Apply., * Install, configure, and maintain enterprise LAN/WAN infrastructure, including routers, switches, firewalls, and VPNs.

 * Independently design and build new network environments, including topology, configuration, and architecture planning.
 * Configure and troubleshoot dynamic routing protocols, including OSPF, RIP, and BGP.
 * Configure and apply standard ACLs to enforce security and traffic policies.
 * Configure, maintain, and troubleshoot Cisco/Juniper enterprise switching environments (Catalyst, Nexus, EX, QFX).
 * Design and implement VLANs, trunking (802.1Q), and inter-VLAN routing to support multi-tenant and segmented environments.
 * Manage Spanning Tree Protocol (STP, RSTP, MST) to ensure loop-free topology and rapid convergence.
 * Deploy EtherChannel/LACP for link redundancy and throughput optimization.
 * Administer, configure, and manage Cisco ASA appliances, including VPN solutions and secure remote access.
 * Implement and manage firewall platforms (Cisco ASA/Firepower, Palo Alto, Juniper SRX) with strong experience in rule creation, policy management, and security hardening.


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