Network Engineer Senior (Security) - TS/SCI required

General Dynamics Information Technology
Fort Belvoir, VA
Public Trust: None
Requisition Type: Pipeline
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

Network Engineer Senior (Security) – TS/SCI required

Transform technology into opportunity as a Network Engineer Senior (Security) at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your career.

MEANINGFUL WORK AND PERSONAL IMPACT

As a Network Engineer Senior (Security) , the work you’ll do at GDIT will be impactful to the mission of US Army Intelligence and Security Command (INSCOM ). You will play a crucial role in supporting the INSCOM mission.

  • Install, configure, and maintain customer network infrastructure and security stack as part of a global enterprise.

  • Troubleshoot networking and security protocols/technologies, including switching, routing, and security (e.g., Layer 4-7, firewall, Site-to-Site VPN, DMVPN, etc) to resolve problems on the customer information system.

  • Analyze, plan, and implement access control lists (ACL), firewall policies, and other logical security controls in a multi-vendor security stack.

  • Provide expert-level (Tier 3) network security engineering support for INSCOM activities in the National Capital Area.

  • Collaborate with teams of various technical discipline to solve enterprise IT problems from a holistic perspective.

  • Configure load balancing and authentication policies on F5 BIG-IP to support web application hosting.

WHAT YOU’LL NEED TO SUCCEED:

  • Education: Bachelor's Degree with 12 years of experience or Master's Degree with 10 years of experience

  • Required Skillset:

    • Excellent attention to detail

    • Excellent communications skills and ability to interact with both clients and teammates

    • Experience with configuring, integrating, and troubleshooting security appliances in a multi-vendor federal enterprise environment

    • Experience with the behavior of routing protocols in Next Generation Firewalls

    • Experience with Network Automation tools, scripting languages, or Infrastructure as Code tools (e.g. NetBrain, Python, PowerShell, APIs, Terraform, Ansible)

    • Intermediate knowledge of F5 BIG-IP deployment and configuration with Local Traffic Manager and Application Security Manager

    • Hardening network devices in accordance with STIGS/NIST and industry best practices

    • Experience with packet analysis tools such as TCPDump and Wireshark

    • Experience working in a large SDLC environment

  • Security Clearance Level: TS/SCI

  • Required Certification(s):

    • DoD 8570/8140 Computing Environment (CE) Certification as determined by the Program Manager is required prior to support on contract

    • Required Security Environment Certification:

      • Cisco Certified Network Professional – Security

      • Cisco Certified Network Professional – Enterprise

      • Palo Alto Networks Certified Network Security Engineer

  • Location : On Customer Site

  • Additional :

    • Candidates must be willing and able to attain a CI Polygraph for certain positions as determined by the contract

    • Position may require lifting of objects (i.e. IT Hardware), reaching/bending/kneeling (i.e. plug in cables) and other moderately strenuous activity

    • Travel may be required to support the mission

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

  • Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY

Explore a career in program management at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your passion for the mission and delivering results.

#GDITarmy

#GDITrecruiting

#GDITINSCOM

#I2TS4

Work Requirements

Years of Experience

10 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Cisco Certified Network Associate (CCNA) | Cisco - Cisco

Travel Required

Less than 10%

Citizenship

U.S. Citizenship Required

Posted 2026-01-20

Recommended Jobs

Field Sales Manager

Boxlight Inc.
Fairfax, VA

Summary Boxlight is a global provider of interactive classroom and campus communication technology designed to enhance learning and create safer, more connected school environments. Our solutions,…

View Details
Posted 2026-01-16

Customer Loyalty Agent - $21.50/hr + Incentives, Hybrid

SimpliSafe, Inc
Richmond, VA

About SimpliSafe We’re a high-tech home security company that’s passionate about protecting the life you’ve built. So, we’ve created a culture here that cares just as deeply about the career you’re b…

View Details
Posted 2026-01-29

Executive Sous Chef Vienna, VA

ESR Healthcare
Vienna, VA

Executive Sous Chef   Vienna, VA   Description: Location: In-House Prep Kitchen & Off-Site Events Schedule: Full-Time Primarily mornings, with some afternoons, nights, and weekend…

View Details
Posted 2026-01-31

Regional Director

Ivy Rehab Network, Inc.
Chesapeake, VA

Ivy Rehab is seeking a Regional Director to oversee operations across multiple outpatient therapy facilities, ensuring the delivery of exceptional therapy services including physical, occupational, an…

View Details
Posted 2026-02-02

Full-Time/Part-Time Center Associate

The UPS Store 5431
South Riding, VA

Primary responsibility is to deliver world-class customer service to customers. This requires strong interpersonal skills, effective oral/written communication skills and the ability to work well with…

View Details
Posted 2025-08-19

BUSINESS DEVELOPMENT MANAGER

Kairos Pulse
Fairfax, VA

BUSINESS DEVELOPMENT MANAGER Job Description Seeking an experienced and results-driven salesperson to join our energetic team. The successful candidate will be responsible for lead generation and bu…

View Details
Posted 2026-01-28

Service Technician

Clover Pest
Richmond, VA

Service Technician (Entry-Level) Clover Pest Control — Virginia About Us Clover Pest Control is a local pest control company committed to helping homeowners and businesses enjoy safe, pest-fre…

View Details
Posted 2026-01-01

Privacy Analyst (Dept of State)

TechOp Solutions International
Arlington, VA

TechOp Solutions International is actively seeking a Privacy Analyst with expertise in compliance and data protection to support the Department of State's privacy initiatives. This position is pivota…

View Details
Posted 2026-01-30

UI/UX Developer

Xenith Solutions
Leesburg, VA

Xenith Solutions is a small family focused business where we focus on taking care of our employees and customers equally.  We are focused on serving Federal / Civilian, Defense and Intelligence organ…

View Details
Posted 2026-01-08

Manager, Product Management - DevX

Capital One
Richmond, VA

Manager, Product Management - DevX Capital One is a high-tech company, a scientific laboratory, and a nationally recognized brand all in one reaching tens of millions of consumers. We are…

View Details
Posted 2026-01-18