CDW

Senior Network Engineer - TS/SCI Clearance

In short

Senior Network Engineer role supporting mission-critical enterprise network infrastructure (LAN, WAN, VPN, routing, switching, firewalls) within a secure federal environment, requiring an active TS/SCI clearance and U.S. citizenship. The company is CDW, a Fortune 500 technology solutions provider, and the role demands senior-level hands-on experience in federal/defense/intelligence network engineering, strong routing/switching and DoD cybersecurity compliance knowledge (STIGs, RMF/ATO), and the ability to document, troubleshoot, and brief technical issues to government stakeholders. Pay range is $160,000–$220,000 depending on experience.

Overview
The Senior Network Engineer will support mission-critical network infrastructure within a secure federal environment. This role requires an active TS/SCI clearance and is focused on the design, implementation, administration, troubleshooting, and sustainment of enterprise network systems. The ideal candidate will bring strong hands-on experience with routing, switching, firewalls, network security, performance monitoring, and documentation while supporting highly available and secure network operations.
What You Will Do
•Design, configure, implement, and maintain enterprise network infrastructure, including LAN, WAN, VPN, routing, switching, firewall, wireless, and related network technologies.
•Perform day-to-day network operations and maintenance, including monitoring, troubleshooting, incident response, upgrades, patching, and lifecycle support.
•Diagnose and resolve complex network issues affecting availability, performance, connectivity, latency, and security across classified and unclassified environments.
•Develop, review, and maintain network architecture diagrams, topology maps, configuration documentation, implementation plans, standard operating procedures, and as-built documentation.
•Plan and execute network changes through established change management processes while minimizing operational risk and downtime.
•Support network security requirements, including secure configuration baselines, access control, vulnerability remediation, STIG compliance, POA&M support, and coordination with cybersecurity teams.
•Evaluate network hardware, software, and transport solutions and provide recommendations for upgrades, modernization, resiliency, and performance improvement.
•Collaborate with government stakeholders, technical teams, vendors, and mission partners to translate requirements into secure and scalable network solutions.
•Support accreditation, audit, and compliance activities by providing technical artifacts, configuration data, ports/protocols/services information, and network security documentation.
•Provide technical guidance and mentorship to junior engineers and operations personnel as needed.
What We Expect of You
•Active TS/SCI clearance required.
•U.S. citizenship required due to federal security requirements.
•Senior-level hands-on experience supporting enterprise network engineering, network operations, or infrastructure engineering in federal, defense, intelligence, or similarly secure environments.
•Strong working knowledge of routing and switching concepts, including VLANs, trunking, subnetting, routing protocols, high availability, redundancy, and network segmentation.
•Experience configuring, supporting, and troubleshooting Cisco or comparable network platforms, firewalls, VPNs, load balancers, wireless systems, and network management tools.
•Ability to troubleshoot complex network problems across physical, virtual, and transport layers using logs, packet captures, monitoring tools, and command-line diagnostics.
•Familiarity with DoD cybersecurity and compliance practices, including DISA STIGs, vulnerability remediation, secure configuration management, and RMF/ATO support.
•Ability to create clear technical documentation, diagrams, implementation plans, and operational procedures.
•Strong communication skills with the ability to brief technical issues, risks, and recommendations to engineering teams, program leadership, and government stakeholders.
•Ability to work independently in a secure, mission-focused environment while managing multiple priorities and operational requirements.
•Bachelor's degree in Computer Science, Information Technology, Cybersecurity, Engineering, or a related technical discipline; additional relevant experience may be considered in lieu of a degree, is a plus.
•DoD 8570/8140 IAT Level II certification, such as Security+ CE, or ability to obtain within program requirements, is a plus.
•Active CCNP certification, is a plus.
•Experience with network automation, configuration management, scripting, or orchestration tools, is a plus.
•Experience supporting classified networks, multi-enclave environments, cross-domain considerations, or secure transport solutions, is a plus.
•Familiarity with INFOSEC, COMSEC, encryption, zero trust principles, and secure network design practices, is a plus.
•Experience with network monitoring and logging tools such as SNMP, SYSLOG, NetFlow, SolarWinds, Splunk, or comparable platforms, is a plus.
Pay
Pay range: $160,000 – $220,000 depending on experience and skill set. Salary ranges may be subject to geographic differentials.
Benefits
Benefits overview: CDW Benefits

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