Network Engineer Senior (Security) TS/SCI required

General Dynamics - IT; Fort Belvoir (VA); On-site; USD 100,000 - 130,000; Full time

Benefits offered by this job

Comprehensive wellness packages

401(k) with company match

Career growth resources

Job summary

General Dynamics - IT is seeking a Senior Network Engineer (Security) at Fort Belvoir, Virginia. The successful candidate will install, configure, and maintain network infrastructure, troubleshoot security protocols, and collaborate with various teams to support crucial government missions. A Bachelor's degree with extensive experience, along with a TS/SCI clearance, is required. Benefits include career growth resources, wellness packages, and 401(k).

Qualifications

• 12+ years of experience or 10+ years with a Master's degree is required.
• TS/SCI security clearance is mandatory.
• Must obtain DoD 8570/8140 CE Certification before contract support.

Responsibilities

• Install, configure, and maintain network infrastructure.
• Troubleshoot networking and security technologies.
• Implement access control lists and firewall policies.
• Provide Tier 3 network security engineering support.
• Configure load balancing and authentication policies on F5 BIG‑IP.

Skills

Excellent attention to detail

Excellent communication skills

Experience with configuring and troubleshooting security appliances

Knowledge of routing protocols in Next Generation Firewalls

Experience with Network Automation tools

Intermediate knowledge of F5 BIG‑IP

Experience with packet analysis tools

Experience in large SDLC environment

Education

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

Tools

TCPDump

Wireshark

Python

PowerShell

Terraform

Ansible

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.

Responsibilities

• 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.

Qualifications

• 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 Certifications:
  • 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

Benefits

• 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, 401(k) with company match, and competitive pay and paid time off
• Community: Award‑winning culture of innovation and a military‑friendly workplace

EEO Statement

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans