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Network Security Engineer - TS​/SCI Polygraph

Job in Herndon, Fairfax County, Virginia, 22070, USA
Listing for: General Dynamics Information Technology
Full Time position
Listed on 2025-12-19
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, IT Consultant, Network Security
Job Description & How to Apply Below
Position: Network Security Engineer - TS/SCI with Polygraph

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret SCI + Polygraph

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph

Public Trust/Other

Required:

None

Job Family:

Cyber and IT Risk Management

Job Qualifications:

Skills: Industrial Control System, Risk Assessments, Splunk Enterprise Security, Supervisory Control and Data Acquisition (SCADA)

Certifications: None

Experience: 8 + years of related experience

US Citizenship

Required:

Yes

Job Description:

Seize your opportunity to make a personal impact as a Network 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. As a Network Security Engineer, you will help ensure today is safe and tomorrow is smarter. Our work depends on a Network Engineer joining our highly skilled team to be a premier provider of cyber security services to the customer.

HOW A NETWORK SECURITY ENGINEER WILL MAKE AN IMPACT
  • Communicate with team leaders and senior 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 YOU’LL 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 to 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-edg…
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