Demo

Network Engineer Senior (Security) - TS/SCI required

General Dynamics
Fort Belvoir, VA Full Time
POSTED ON 9/14/2025
AVAILABLE BEFORE 11/13/2025

Job Details

Type of Requisition:
Regular

Clearance Level Must Currently Possess:
Top Secret/SCI

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:
Network Engineering, Network Infrastructures, Networking Hardware
Certifications:
None
Experience:
10 years of related experience
ship Required:
Yes

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

The likely salary range for this position is $119,000 - $161,000. 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:
10-25%

Telecommuting Options:
Onsite

Work Location:
USA VA Fort Belvoir

Additional Work Locations:

Total Rewards at GDIT:
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.

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 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 capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

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
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Salary : $119,000 - $161,000

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