Senior Network Engineer

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret SCI + Polygraph

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph

Public Trust/Other Required:

None

Job Family:

IT Infrastructure and Operations

Job Qualifications:

Skills:

Cisco IOS, Internet Protocol Security (IPsec), Linux, Network Monitoring Tools, Routing and Switching Certifications:

None Experience:

8 + years of related experience US Citizenship Required:

Yes

Job Description:

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:

• Displays a comprehensive understanding of routing and switching protocols to include but not limited to OSPF, BGP and EIGRP, VLAN's, Spanning Tree, Multicast, etc
• Has an 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, Ansible, Python or other network monitoring tools)
• 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

Responsible for installation, configuration, management, and troubleshooting of F5 BIG-IP systems to ensure applications are fast, available, and secure.

• Proven ability to 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
• Responsible for creating network diagrams using Microsoft Visio
• Responsible for documenting network design and creating Standard Operating Procedures for 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
• Excellent communications skills and ability to interact with both clients and teammates

Required Qualifications:

Must possess and maintain a TS/SCI clearance with CI polygraph.

• Education: BA/BS degree or equivalent work experience
• Experience: 8-10+ years of related experience
• Certifications: DoD 8570.01, Cisco CCNP (active) required
• Certifications: Cisco CCNA, CCNP Enterprise, CCNP Security, F5 certification

Desiree Qualification.

• 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 (to include instillation) of KG-175, KG-250 and other NSA Cryptographic devices.

Knowledge of configuration of Cisco IOS-XE 17.x and NX-OS 10.x

Location:

On Customer Site

Citizenship:

US Citizenship Required

GDIT IS YOUR PLACE

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

• ● Growth: AI-powered career tool that identifies career steps and learning opportunities
• ● Support: An internal mobility team focused on helping you achieve your career goals
• ● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
• ● Flexibility: Full-flex work week to own your priorities at work and at home ***remove if ineligible***
• ● Community: Award-winning culture of innovation and a military-friendly workplace
• OWN YOUR OPPORTUNITY

Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

The likely salary range for this position is $153,000 - $207,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

Less than 10%

T elecommuting Options:

Onsite

Work Location:

USA CA Livermore

Additional Work Locations:

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc .

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans