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General Dynamics Information Technology

Builds and runs technology for government agencies

Senior Network Engineer

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeLivermore, CA, USA$153k - $207k

About the Job

Requirements

  • Experience with Cisco IOS, Cisco routers and switches, Internet Protocol Security (IPsec), switching protocols, and virtual private networks (VPNs).
  • Comprehensive understanding of routing and switching protocols, including OSPF, BGP, EIGRP, VLANs, Spanning Tree, and multicast.
  • In-depth understanding of Cisco IOS platforms and practical knowledge of LAN/WAN networking topologies, with hands-on experience with IPsec VPNs.
  • Experience with network diagnostic, monitoring, and analysis tools such as SolarWinds, Splunk, Ansible, Python, or other network monitoring tools.
  • Ability to analyze, diagnose, and resolve complex performance and connectivity issues.
  • Experience with Cisco Secure Firewalls (FTD/FMC), ISE, and 802.1x authentication, including device-access troubleshooting on network switches.
  • Ability to configure and administer Cisco routers, switches, secure firewalls, and ISE for identity-based access control and 802.1x authentication.
  • BA/BS degree or equivalent work experience.
  • 8–10+ years of related experience.
  • Must possess and maintain a Top Secret/SCI clearance with CI polygraph.
  • DoD 8570.01 certification and active Cisco CCNP certification are required.
  • Linux system administration (Red Hat Enterprise) is preferred.
  • Knowledge of Cisco Catalyst and Cisco Nexus series switches.
  • Knowledge of F5 BIG-IP.
  • Knowledge of Cisco ISR Gen2 (1900, 2900, 3900 series) and ISR Gen3 (4000 series) routers.
  • Knowledge of Cisco Firepower 2100 series firewalls.
  • Knowledge, including installation, of KG-175, KG-250, and other NSA cryptographic devices.
  • Knowledge of Cisco IOS-XE 17.x and NX-OS 10.x configuration.
  • Excellent communication skills and ability to interact with clients and teammates.

Responsibilities

  • Design, implement, and maintain complex LAN/WAN infrastructures, including routing, switching, and secure VPN connectivity.
  • Ensure network integrity, compliance with security policies (STIGs/NIST), and proper backup and recovery processes.
  • Install, configure, manage, and troubleshoot F5 BIG-IP systems to ensure applications are fast, available, and secure.
  • Evaluate and integrate new communications technologies to enhance network performance, security, and scalability.
  • Create network diagrams using Microsoft Visio.
  • Document network designs and create Standard Operating Procedures for installation and configuration of network devices.
  • Maintain current knowledge of evolving network and automation technologies.
  • Collaborate with cross-functional teams and provide mentorship when needed.

Desired Qualifications

  • Knowledge of Cisco Catalyst and Cisco Nexus series switches.
  • Knowledge of F5 BIG-IP.
  • Knowledge of Cisco ISR Gen2 (1900, 2900, 3900 series) and ISR Gen3 (4000 series) routers.
  • Knowledge of Cisco Firepower 2100 series firewalls.
  • Knowledge, including installation, of KG-175, KG-250, and other NSA cryptographic devices.
  • Knowledge of Cisco IOS-XE 17.x and NX-OS 10.x configuration.

About the Company

General Dynamics Information Technology

Builds and runs technology for government agencies

GDIT builds and runs technology systems for U.S. government agencies, including defense, intelligence and civilian organizations. Its work spans cloud infrastructure, cybersecurity and software development, with tools tailored to sensitive missions and large agency operations. The company combines its own reusable technology solutions with commercial products, then earns revenue through contracts to design, integrate, modernize and operate customer systems, including support for both classified and unclassified networks. It also supplies technical expertise and daily operational support, and is a business unit of General Dynamics headquartered in Falls Church, Virginia.

Company size
10,001+
Company stage
Not listed
Total funding
Not listed
Headquarters
Falls Church, VA
Founded
1999

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