Senior Network Engineer: Secure Enterprise LAN/WAN & VPN

General Dynamics IT; Rockville (MD); On-site; USD 111,000 - 151,000; Full time

Benefits offered by this job

401(k) with company match

Comprehensive health and wellness

Paid education and certifications

Internal mobility support

Job summary

General Dynamics IT in Rockville, MD is seeking a Senior Network Engineer to own the design, operation and security of HRSA's network infrastructure, and to support the enterprise LAN/WAN, firewall, and remote-access infrastructure.

This hands-on role collaborates with Project Managers, the Office of Information Security, and desktop/server teams to deliver secure, scalable networking, IPv4/IPv6, RSA SecurID, VPNs, and compliance with NIST and TIC standards.

Qualifications

• Bachelor's degree or equivalent combination of education and experience.
• 8+ years of network engineering experience, including TCP/IP, DNS, routing/switching, IPsec VPN, firewalls, and end-to-end connectivity troubleshooting, including PCAP analysis with Wireshark.
• Hands-on experience with Cisco switching/IOS upgrades and at least one enterprise firewall platform (Cisco ASA/Firepower or Palo Alto/Panorama).
• Experience in federal or enterprise environments with strict compliance and 99.9%+ uptime requirements; familiarity with NIST 800-53, TIC 3.0, and CISA BODs.
• Formal change-management experience and TLS certificate lifecycle management.
• Excellent communication, documentation, and collaboration skills.

Responsibilities

• Configure and manage routers, switches, firewalls, and remote access systems in support of secure and scalable network operations.
• Implement and support RSA SecurID / RSA Authentication Manager solutions, including integration with VPNs, RADIUS, and enterprise authentication systems.
• Design, implement, and troubleshoot IPv4 and IPv6 network architectures, ensuring seamless integration and scalability across environments.
• Provide innovative methods and technical solutions using the engineering design process.
• Collaborate closely with Project Managers, engineers, and stakeholders to deliver complex network projects on time and within scope.
• Analyze customer and business requirements to develop technical solutions for complex networking challenges.
• Ensure network integrity, security, and compliance with federal and organizational policies, including backup and recovery capabilities.
• Monitor network performance using industry-leading tools, proactively identifying and resolving issues.

Skills

Cisco

Network Engineering

RSA SecurID

VPN Troubleshooting

Education

Bachelor's degree

Tools

Cisco IOS upgrades

Wireshark

Zscaler (ZIA/ZPA)

Job description

General Dynamics IT in Rockville, MD is seeking a Senior Network Engineer to own the design, operation and security of HRSA's network infrastructure, and to support the enterprise LAN/WAN, firewall, and remote-access infrastructure.

This hands-on role collaborates with Project Managers, the Office of Information Security, and desktop/server teams to deliver secure, scalable networking, IPv4/IPv6, RSA SecurID, VPNs, and compliance with NIST and TIC standards.