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Job Title: Network Engineer Senior (Security) – TS/SCI required
Company Name: General Dynamics IT
Location: Fort Belvoir, VA
Position Type: Full Time
Post Date: 09/10/2025
Expire Date: 03/01/2026
Job Categories: Engineering, Information Technology
Job Description
Network Engineer Senior (Security) – TS/SCI required

Network Engineer Senior (Security) TS/SCI required

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

MEANINGFUL WORK AND PERSONAL IMPACT

As a Network Engineer Senior (Security), the work youll 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 YOULL 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 youll find endless opportunities to grow alongside colleagues who share your passion for the mission and delivering results.

#GDITarmy

#GDITrecruiting

#GDITPriority

#GDITINSCOM

#I2TS4

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Contact Information
Company Name: General Dynamics IT
Website:https://www.gdit.com/careers/job/09756ab4c/network-engineer-senior-security-tssci-required/?source=AutoAppend_HBCU
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