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Job Title: Network Cloud Security Engineer - TS/SCI with Polygraph
Company Name: General Dynamics IT
Location: Herndon, VA
Position Type: Full Time
Post Date: 02/26/2026
Expire Date: 03/31/2026
Job Categories: Engineering, Information Technology
Job Description
Network Cloud Security Engineer - TS/SCI with Polygraph

Seize your opportunity to make a personal impact as a Network Cloud Security Engineer supporting customer activities. GDIT is your place to make meaningful contributions to challenging projects and grow a rewarding career.

At GDIT, people are our differentiators and as a Network Cloud Security Engineer, you will help ensure today is safe and tomorrow is smarter. Our work depends on a Network Cloud Security Engineer joining our highly skilled team to be a premier provider of cyber security services to the customer.

Our customer has a requirement for a Network Cloud Security Engineer with a background in Network Defense and Cloud Security in the areas below:

  • Intrusion Detection/Intrusion Prevention Systems (IDS/IPS) - Trellix / FireEye
  • Network Detection and Response (NDR)
  • Experience with Vectra or similar (Vectra integration with Active Directory a plus); Packet brokers and optical taps
  • Firewall experience (configuring Palo Alto NEXTGEN and/or Cisco FirePower)
  • Creating and/or modifying Splunk dashboards
  • Programming language experience, Python and PowerShell
  • Experience working on/within the customer's enterprise network

HOW A NETWORK SECURITY ENGINEER WILL MAKE AN IMPACT

  • Communicate with team leaders and leadership, assess changes, and rapidly change direction in support of new and/or changing program requirements.
  • Identify risks to the critical infrastructure of the customer to protect against cyber threats from foreign states, hackers, and internal sources.
  • Utilize operations technology knowledge to integrate cybersecurity tools to identify, detect, protect, respond, and recover from cybersecurity events.
  • Serve as a customer facing expert in intrusion detection and prevention systems, network detection and response, packet capture, and/or other tools, supporting them to achieve success with the technology for their overall cybersecurity efforts.
  • Collaborate with project teams on their network architecture, sensor placement, and planning activities for the deployment of new technology.
  • Analyze and help maintain a process to coordinate improvements to the cyber security of critical infrastructure in a collaborative process with critical infrastructure owners to determine if current cyber security requirements are sufficient given current and projected risks.

WHAT YOULL NEED TO SUCCEED:

  • Education: Bachelors (Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Information Technology, Cybersecurity, or closely related discipline)
  • Required Experience: 8+ yrs
  • Required Technical Skills:
  • Demonstrated experience working in Network Defense, Network Security Architecture, and Networking Technology (various devices and vendors)
  • Experience designing a broad range of policy, standards and common risk management methodologies - for example, NIST, ISO 27001/27002, PCI/DSS, COBIT, ITIL, ISO 2000, etc.
  • Demonstrated experience with Splunk, SIEM, and network data analytics
  • Knowledge of IT and OT protocols, IP networks, OSI model, and other protocols utilized by the customer
  • Possess good troubleshooting and problem-solving skills, strong technical and analytical abilities, and strong oral and written communication skills.
  • Ability to identify new technologies, assess their technical and performance characteristics, as well as utilize proficiency in risk assessment methodologies
  • Ability to create complex system designs, resolve engineering problems, and propose preventive strategies.
  • Ability to write technical documents addressing complex, sensitive issues
  • Strong analytical and problem-solving skills
  • Demonstrated ability to analyze Information System (IS) test results and suggest compensating controls for meeting IS security requirements
  • Desired Qualifications:
  • Linux (command line) experience (minimum of intermediate skill/experience), CENTOS, scripting languages (python, shell, etc.)
  • On-premises and Cloud software solutions for enterprise
  • Security Clearance Level: TS/SCI with active polygraph
  • Desired Certifications:
  • Cyber security certification in one or more of the following: CISSP, CCNP, CCSP
  • Location: Herndon, VA - customer site

GDIT IS YOUR PLACE:

  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from
  • Rest and recharge with paid vacation and holidays

#WeAreGDIT
#JET
#GDITEnhanced2026

#VA_2026Alumni

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Contact Information
Company Name: General Dynamics IT
Website:https://www.gdit.com/careers/job/811c3b116/network-cloud-security-engineer-tssci-with-polygraph/?source=AutoAppend_HBCU
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