Senior Network Engineer
General Dynamics Information Technology · Falls Church, VA · Today
$94k–$115k/yrFull-time
About the role
We are seeking a Senior Network Engineer to join our enterprise infrastructure team supporting a large, complex environment spanning cloud and enterprise network services. This is a hands-on engineering role responsible for implementing, operating, and continuously improving critical network infrastructure that supports enterprise applications, services, and users across hybrid environments.
Responsibilities
- Install, configure, and support enterprise network equipment including routers, switches, and core network services
- Maintain highly available network infrastructure supporting enterprise and cloud-connected environments
- Continuously improve network reliability, performance, and operational efficiency across large-scale deployments
- Support routing, switching, and core network protocols
- Configure and troubleshoot routing and switching infrastructure across large enterprise environments
- Support dynamic routing protocols such as BGP and OSPF
- Maintain strong operational knowledge of network layers (L1/L2/L3) and how they impact service delivery
- Diagnose complex network issues across routing, switching, and transport layers
- Maintain network security and connectivity
- Configure and support enterprise firewall platforms, including access control policies, VPNs, and secure tunnels
- Maintain secure network connectivity across internal networks, remote sites, and cloud environments
- Ensure network configurations align with organizational security standards and operational best practices
- Manage foundational network services
- Support DNS security and protection mechanisms
- Support DNS integration with directory services and DHCP systems
- Collaborate across engineering teams
- Partner with cloud, security, and infrastructure teams to support enterprise networking requirements
- Contribute to network design documentation, operational runbooks, and engineering best practices
- Mentor junior engineers and support knowledge sharing within the engineering organization
- Support operational lifecycle management
- Manage network infrastructure through firmware updates and lifecycle management
- Ensure network equipment remains aligned with current security and operational standards
- Contribute to change management processes and operational readiness activities
Qualifications
- 10+ years of experience supporting enterprise networking environments
- Strong hands-on experience with enterprise routing and switching
- Deep understanding of networking protocols such as TCP/IP, DNS, HTTP/HTTPS, and VPN technologies
- Experience operating and troubleshooting dynamic routing protocols such as BGP and OSPF
- Experience configuring and maintaining enterprise firewall platforms, VPN connectivity, and network security controls
- Strong troubleshooting skills across routing, switching, and network infrastructure layers
- Experience managing DNS infrastructure, including monitoring, security, and integration with enterprise directory services
- Experience supporting enterprise wireless and device authentication environment
- Familiarity with network monitoring and diagnostic tools
- Ability to collaborate effectively across infrastructure, cloud, and security engineering teams