Senior Network Engineer

ERG is a research and consulting firm that provides a wide range of support to federal, state, and commercial clients. ERG offers multidisciplinary teams with nationally recognized skills in engineering, science, economics, public health, informational technology, and communications. We hire people with the best minds and then provide them with a vibrant and flexible environment in which to develop their careers. The qualified individual must be highly motivated with the skills to prioritize, perform, and communicate effectively in a fast-paced environment. 

ERG is seeking a Senior Network Engineer to design, implement, secure, and maintain Navy network infrastructures that support mission-critical operations. This role is responsible for engineering robust network architectures, optimizing network performance, and ensuring the confidentiality, integrity, and availability of Navy communications systems. The ideal candidate brings strong technical depth in network engineering, hands-on experience with secure DoD environments, and a commitment to maintaining resilient, high-performing network operations. 

This is a fulltime onsite position at the Naval Surface Warfare Center (NSWC) Indian Head. Indian Head, MD, is approximately 30 miles from Washington, DC, 25 miles from Alexandria, VA, and 60 miles from Fredericksburg, VA.   

Design, configure, and maintain secure LAN/WAN network infrastructures supporting Navy systems 

Manage routers, switches, firewalls, and other network appliances to ensure optimal performance and reliability 

Troubleshoot and resolve network outages, latency issues, and configuration errors across enterprise environments 

Implement and maintain network security controls, including segmentation, access control lists (ACLs), and boundary protections 

Support cybersecurity monitoring, incident response, and network compliance activities in coordination with security teams 

Conduct network performance analysis, capacity planning, and optimization to ensure efficient data flow 

Maintain accurate network diagrams, documentation, and configuration records 

Ensure all network solutions meet DoD, Navy, and cybersecurity standards 

Bachelor’s degree in Information Technology, Network Engineering, Computer Science, or related field 

8+ years of experience in network engineering with a focus on network security 

DoD Security+ certification required (IAT Level II) 

Hands-on experience with LAN/WAN architecture, routing protocols, switching technologies, and secure network design 

Experience with NIPR/SIPR boundary protection, Cross Domain Solutions (CDS) management, and preferably the Defense Research and Engineering Network (DREN) 

Strong working knowledge of firewalls, VPN technologies, IDS/IPS, and network encryption methods 

Ability to analyze and resolve complex network performance issues 

Excellent communication, documentation, and problem-solving skills 

Must currently hold or maintain a Department of Defense T5 investigation/privileged access eligibility (T5 (SSBI) clearance) 

Must be a U.S. citizen as this position is not eligible for Limited Access Authorizations 

Experience working with Navy network environments or DoD enterprise networks 

Familiarity with Cisco, Juniper, or similar enterprise network hardware 

Knowledge of DoD cybersecurity requirements and RMF-aligned security controls 

Experience supporting network monitoring tools and compliance activities