Cyber Security Engineer (Endpoint) - TS/SCI w/Polygraph Required

Clearance Level
Top Secret SCI + Polygraph
Cyber Engineering
Herndon, Virginia
Onsite Workplace
Key Skills For Success


Systems Engineering

Systems Security

REQ#: RQ171345
Requisition Type: Regular
Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

Own your career as a Cyber Security Engineer at GDIT. Here, you’ll have the opportunity to build strong lines of cyber defense using cutting-edge technologies. Your work in cyber security at GDIT will have an impact on securing our clients’ missions and ensuring we anticipate the threats of tomorrow. 

At GDIT, people are our differentiator. As a Cyber Security Engineer you will help ensure today is safe and tomorrow is smarter. Our work depends on Cyber Security Engineer joining our team as a member of the client’s Cyber Consulting Team, specializing in providing guidance and support to the client’s Endpoint technology program(s). 

  • Consults with customer/clients regarding enterprise Endpoint cybersecurity policies, requirements, and solutions.
  • Plans, prepares, and executes tests against endpoint technologies used to secure systems and reduce cyber risk.
  • Coordinates with stakeholders across the organization to identify and clarify specifications, requirements, and performance measures.
  • Leverages engineering expertise to document and codify use cases for mission partners and collaborates with service providers to ensure solutions meet the operational needs.
  • The Cyber Security Engineer, SME should have proven experience communicating effectively with a variety of business partners and customers and have a demonstrated capacity to develop effective interpersonal relationships; strong analytic and organization skills; self-starting skills; the ability to work effectively and independently, with little direction; ability to prioritize and handle multiple tasks simultaneously. 


  • Consults with projects and system owners on cybersecurity Endpoint technology requirements, provides a detailed analysis of applicable Endpoint cybersecurity solutions, and prepares background papers on possible/recommended solutions.
  • Measures effectiveness of endpoint technology stack against known vulnerabilities and compliance requirements
  • Plans, prepares, and executes tests to assess Endpoint technologies against specifications and operational requirements.  Document test analysis and deliver report in formats requested by the customer.
  • Assists in the implementation of the required government policy (i.e., NIST, NSM-8, CNSS, and ICD-503), and may make recommendations on process tailoring.
  • Responsible for performing assessments that validate established security requirements and to recommend additional security requirements and safeguards.
  • Supports formal Security Test and Evaluation (ST&E) required by the government accrediting authority through pre-test preparations, test execution, analysis of the results, and documentation of required reports (as needed).
  • Conduct periodic reviews of system audits and monitors corrective actions until all actions are closed (as needed).
  • May coach and provide guidance to team members as appropriate.
  • May serve as a team or task lead. 


  • Education: Technical Training, Certification(s) and/or Degree (Cyber Security, Computer Science, Information Technology, etc.)
  • Required Experience: 15+ years
  • Required Technical Skills:
  • Demonstrated experience implementing or maintaining cybersecurity Endpoint technologies (e.g., EDR, DLP, AV, Vulnerability Scanning, multi-factor authentication solutions).
  • Demonstrated experience with enterprise cybersecurity management platforms (e.g. Trellix, Symantec, Microsoft, AWS, Tanium, ServiceNow, etc.).
  • Required Skills and Abilities
  • Demonstrated experience engineering and deploying IT capabilities.
  • Demonstrated experience supporting the NIST Risk Management Framework. 
  • Demonstrated experience with Windows server, Linux, and workstation administration and/or engineering. 
  • Demonstrated ability to provide triage effectively and independently, and problem resolution for technical issues. 
  • Demonstrated record of sound judgment and problem-solving skills necessary to make recommendations to Customer management. 
  • Demonstrated working knowledge of information security policies and regulations. 
  • Excellent written and oral communication skills. 
  • Desired Skills and Abilities
  • Demonstrated experience with implementation and assessment of security controls that support authorization and accreditation processes.  
  • Demonstrated project management experience. 
  • Location: Herndon, VA, Customer Site
  • Security Clearance Level: TS/SCI w/Polygraph
  • US Citizenship: Required 


  • 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 


Work Requirements
Years of Experience

15 + years of related experience

* may vary based on technical training, certification(s), or degree


Travel Required

Less than 10%


U.S. Citizenship Required

About Our Work

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 30 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.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.