Senior Network Engineer - TS​/SCI Clearance

Description

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.

• 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.

• 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…