Senior Network Engineer | TS/SCI Clearance

CO1002 CDW Government, LLC; Washington (District of Columbia, VA); On-site; USD 160,000 - 220,000; Full time

Job summary

CDW Government, LLC is seeking a Senior Network Engineer to support mission‑critical, secure federal networks. The role requires an active TS/SCI clearance and focuses on design, implementation, administration, troubleshooting, and sustainment of enterprise network systems across classified and unclassified environments.

You will work on routing, switching, firewalls, VPNs, monitoring, and documentation while ensuring high availability and security.

Qualifications

• Active TS/SCI clearance required with U.S. citizenship
• Senior‑level hands‑on experience in enterprise network engineering or infrastructure in secure environments
• Strong knowledge of routing, switching, VLANs, and network segmentation
• Experience with Cisco or comparable platforms, firewalls, VPNs, and network management tools
• Ability to troubleshoot complex network issues across physical, virtual, and transport layers
• Familiarity with DISA STIGs, vulnerability remediation, and RMF/ATO support

Responsibilities

• Design, implement, and maintain enterprise network infrastructure (LAN, WAN, VPN)
• Monitor, troubleshoot, and respond to incidents to ensure high availability
• Develop architecture diagrams, topologies, SOPs, and as‑built documents
• Support change management to minimize downtime and risk
• Provide technical guidance to junior engineers and coordinate with stakeholders

Skills

Routing & Switching

Firewalls & VPN

Network Security

Network Monitoring

Documentation

Change Management

DoD RMF/ATO

Scripting/Automation

Education

Bachelor's degree in Computer Science, Information Technology, Cybersecurity, Engineering, or related technical discipline

Tools

SNMP

SYSLOG

NetFlow

SolarWinds

Splunk

Job description

CDW Government, LLC is seeking a Senior Network Engineer to support mission‑critical, secure federal networks. The role requires an active TS/SCI clearance and focuses on design, implementation, administration, troubleshooting, and sustainment of enterprise network systems across classified and unclassified environments.

You will work on routing, switching, firewalls, VPNs, monitoring, and documentation while ensuring high availability and security.