Senior Network Engineer COMSEC​/Secure Networks

SEA CORP

Location: Middletown, RI, United States

SEACORP is seeking a well-qualified Senior Network Engineer COMSEC / Secure Networks
.

Primary Duties and Responsibilities:

SEACORP's Electronic Warfare Business Area is seeking a highly skilled Network Engineer to support secure, mission-critical Department of Defense (DoD) network environments. The successful candidate will have strong hands‑on experience with routing and switching, IPsec VPN, DMVPN, network encryption, and COMSEC operations. This position will support the design, deployment, configuration, integration, troubleshooting, and maintenance of secure communications networks. The engineer will work closely with network, cybersecurity, systems engineering, and operations teams to maintain highly available and secure network infrastructure.

The ideal candidate is a hands‑on engineer capable of troubleshooting complex problems across the network stack, from physical connectivity and routing through VPN tunnels, encryption devices, and COMSEC systems.

Job

Responsibilities Include:

• Design, configure, deploy, and maintain secure IP network infrastructure supporting DoD missions.
• Configure and troubleshoot Cisco routers, switches, firewalls, and security appliances.
• Design, implement, and troubleshoot: IPsec VPN, DMVPN, Site‑to‑site VPN, GRE/GRE over IPsec and Secure WAN connectivity.
• Configure and troubleshoot BGP, OSPF, and EIGRP routing environments.
• Troubleshoot complex routing, switching, VPN, and encrypted communications issues.
• Configure and maintain network encryption equipment and encrypted communication paths.
• Support NSA‑approved Type 1 encryption technologies and associated network architectures.
• Support COMSEC operations, including key management, key loading, accounting, safeguarding, and handling procedures.
• Serve as a technical resource for COMSEC‑related network issues and secure communications.
• Support COMSEC equipment installation, configuration, maintenance, testing, and troubleshooting.
• Maintain accurate network configurations, diagrams, inventories, and technical documentation.
• Perform network testing and validation following system upgrades, configuration changes, and new deployments.
• Analyze packet captures, routing tables, device logs, and monitoring data to isolate network problems.
• Support cybersecurity and system accreditation activities, including implementation of applicable DISA STIGs.
• Participate in network integration, testing, exercises, deployments, and operational events.
• Coordinate with government customers, program management, cybersecurity personnel, and other engineering disciplines.
• Provide technical support during scheduled and unscheduled maintenance activities.
• Travel periodically to customer, deployment, training, and operational locations.

Qualifications:

Education: Bachelor's degree in Computer Science, Information Technology, Electrical Engineering, Network Engineering, or a related technical field preferred. Equivalent relevant military, technical, or professional experience may be substituted for formal education where permitted by contract requirements.

Experience: 5+ years of professional network engineering experience; 7+ years preferred for senior‑level candidates.

Strong hands‑on experience with Cisco IOS/IOS‑XE.

Required Technical

Qualifications:

• Advanced understanding of TCP/IP networking and routing.
• Demonstrated experience with: BGP, OSPF, EIGRP, VLANs and trunking, NAT/CGNAT, DHCP/DNS, IPv4/IPv6, QoS
• Strong hands‑on experience with IPsec VPN and DMVPN.
• Experience troubleshooting GRE, GRE over IPsec, and encrypted tunnels.
• Experience with network encryption devices, preferably KG‑series or comparable NSA Type 1 encryption equipment.
• Working knowledge of COMSEC policies, procedures, equipment, and key…