Senior Network Engineer

General Dynamics•Livermore, CA

32d•$136,000 - $184,000•Onsite

About The Position

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the mission to keep our country safe and secure. Key Skills for Success: Experience with Cisco IOS, Cisco Routers and Switches, Internet Protocol Security (IPsec), Switching Protocols, Virtual Private Networks (VPNs) Principal Duties / Responsibilities: Design, plan, build, and maintain secure communications networks supporting enterprise and hybrid environments. Configure routers, switches, firewalls, and IPSec-based VPN solutions for LAN, WAN, and remote-access connectivity. Coordinate LAN/WAN hardware/software improvements and/or enhancements. Ensure network reliability, scalability, and compliance while leveraging automation and emerging technologies to enhance operational efficiency and support mission-critical business operations. Provide current network diagrams and other documentation. Display a comprehensive understanding of routing and switching protocols (OSPF, BGP, EIGRP, VLAN, Spanning Tree, Multicast). In-depth understanding of Cisco IOS platforms and practical knowledge of networking topologies (LAN, WAN) and hands-on experience with IPSec VPNs. Experience with network diagnostic, monitoring, and analysis tools (e.g., SolarWinds, Splunk). Design, implement, and maintain complex LAN/WAN infrastructures, including routing, switching, and secure VPN connectivity. Ensure network integrity, compliance with security policies, and proper backup and recovery processes. Install, configure, manage, and troubleshoot F5 BIG-IP systems to ensure applications are fast, available, and secure. Analyze, diagnose, and resolve complex performance and connectivity issues. Proven experience with Cisco Secure Firewalls (FTD/FMC), ISE, and 802.1x authentication, including device access troubleshooting on network switches. Evaluate and integrate new communications technologies to enhance network performance, security, and scalability. Create network diagrams using Microsoft Visio. Document network design and create Standard Operating Procedures for the installation and configuration of network devices. Maintain current knowledge of evolving network and automation technologies. Collaborate effectively with cross-functional teams and provide mentorship when needed. Linux system administration (RedHat Enterprise) preferred. Configure and administer Cisco routers, switches, secure firewalls, and ISE for identity-based access control and 802.1x authentication.

Requirements

Must possess and maintain a TS/SCI clearance with lifestyle polygraph.
Education: BA/BS degree or equivalent work experience.
Experience: 8+ years of related experience.
Certifications: DoD 8570.01, Cisco CCNP (active) required.
US citizenship.

Nice To Haves

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 series firewalls.
Knowledge (including installation) of NSA Cryptographic devices (KG-175, KG-250).
Knowledge of configuration of Cisco IOS 15.x, Cisco IOS-XE 16.x, and NX-OS 9.x.

Responsibilities

Design, plan, build, and maintain secure communications networks supporting enterprise and hybrid environments.
Configure routers, switches, firewalls, and IPSec-based VPN solutions for LAN, WAN, and remote-access connectivity.
Coordinate LAN/WAN hardware/software improvements and/or enhancements.
Ensure network reliability, scalability, and compliance while leveraging automation and emerging technologies to enhance operational efficiency and support mission-critical business operations.
Provide current network diagrams and other documentation.
Display a comprehensive understanding of routing and switching protocols (OSPF, BGP, EIGRP, VLAN, Spanning Tree, Multicast).
In-depth understanding of Cisco IOS platforms and practical knowledge of networking topologies (LAN, WAN) and hands-on experience with IPSec VPNs.
Experience with network diagnostic, monitoring, and analysis tools (e.g., SolarWinds, Splunk).
Design, implement, and maintain complex LAN/WAN infrastructures, including routing, switching, and secure VPN connectivity.
Ensure network integrity, compliance with security policies, and proper backup and recovery processes.
Install, configure, manage, and troubleshoot F5 BIG-IP systems to ensure applications are fast, available, and secure.
Analyze, diagnose, and resolve complex performance and connectivity issues.
Proven experience with Cisco Secure Firewalls (FTD/FMC), ISE, and 802.1x authentication, including device access troubleshooting on network switches.
Evaluate and integrate new communications technologies to enhance network performance, security, and scalability.
Create network diagrams using Microsoft Visio.
Document network design and create Standard Operating Procedures for the installation and configuration of network devices.
Maintain current knowledge of evolving network and automation technologies.
Collaborate effectively with cross-functional teams and provide mentorship when needed.
Linux system administration (RedHat Enterprise) preferred.
Configure and administer Cisco routers, switches, secure firewalls, and ISE for identity-based access control and 802.1x authentication.

Benefits

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match.
To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.
We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

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