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# Network Engineer Level 3

- **Company:** Visionary Technologies Inc.
- **Location:** Columbia, MD, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Spanning Tree Protocols, Cisco IOS, Cisco Routers, Protocol Stack, Data Centers, Issue Tracking Systems, InfiniBand, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Planning and Design, Routing, Packet Analyzer, HP OpenView, Solaris (Operating System), Terminal Access Controller Access-Control System (TACACS), TCP/IP, Virtualization Technology, Network Routers, Cisco Configuration Professional, Load Balancing, Firewalls (Computer Science), Juniper, Network Support, Atlassian Tools, Cisco Switches, Cisco, Vmware
- **Published:** May 14, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8915370/network-engineer-level-3

## About the Role

Cisco IOS, CatOS, NxOS, filter and access control, Ciscoworks, TACACS+, ASA, FWSM, HP Openview, Cisco routers, Cisco Switches, F5/Cisco load balancers, Infiniband, Juniper, FiberChannel (FC) SAN, and VPN (IPSEC)
Physical installation and configuration, and troubleshooting of network routers, switches, load balancers and security devices.
Strong knowledge of TCP/IP protocol stack and routing and switching protocols.
Strong working knowledge of L2/L3 protocols.
Strong working knowledge of stateful firewalls, and L3 access controls.
Working knowledge of Atlassian Tool Suite.
Able to support on-call requirements.
Able to work in live call environment and utilize remedy and/or other ticketing system to track tasking.
Virtualization products; VMWare and Solaris containers, Eight years demonstrable experience (with degree, or 13 without) in network engineering (LAN), architecture, monitoring, security, and protection.
Must have datacenter network design and architecture experience to include installation and configuration of Cisco routers, switches, firewalls, and IPSEC virtual private networks.

## Description

This position will provide Network support requiring system level design, architecture or enterprise security and security boundaries, datacenter virtualization, CAN/MAN/LAN infrastructure packet capture software, TCP/IP protocol stack, routing/switching protocols, stateful firewalls, and L3/L4 access controls.


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