Security Engineer, TS/SCI with Polygraph required

Clearance Level
Top Secret SCI + Polygraph
Information Security
McLean, Virginia
Onsite Workplace
Key Skills For Success

Continuous Monitoring


Security Requirements

Systems Security

Vulnerability Scanning

REQ#: RQ159949
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

At GDIT, people are our differentiator. As a security engineer and help ensure the mission is never interrupted. At GDIT, we deliver clarity with supporting the customer, you will be trusted to solve complex IT issues while delivering outstanding customer service.

Ensure the safety and security of our nation as a security engineer can help ensure the mission is never interrupted. At GDIT, we deliver clarity with at GDIT. You’ll apply the latest technology and provide operational support to deliver actionable intelligence for the Intelligence Community. Here, your work will have meaning and impact as you deliver your best every day.


  • Plan, design, develop, test, and deploy IT solutions within the Sponsor’s mission.
  • Research and analyze vendor products, such as COTS and GOTS components, to determine the feasibility of the design or application applied within the Sponsor’s mission.
  • Perform desktop, server, and network hardware and software installations, maintenance, and upgrades within the Sponsor’s mission.
  • Provide asset management for software licenses and hardware inventory, within the Sponsor’s mission.
  • Perform Accreditation and Authorization (A&A) duties in relation to scanning, preparing the necessary documentation, and performing and engineering mitigations for security findings within the Sponsor’s mission.
  • Develop and derive system requirements, system designs, product prototyping and proof of concept.
  • Support system integration and implementation.
  • Perform testing and validation for infrastructure components, applications, and end-to-end systems within the Sponsor’s mission.

Required skills and demonstrated experience:

  • An understanding of implementing security best practices and Intelligence Community (IC) compliance requirements into networking, computing, and enclave environments.
  • Demonstrated experience developing and maintaining system security certification and accreditation for IT systems in accordance with IC compliance requirements.
  • Demonstrated experience reviewing and evaluating customer security issues and implement corrective actions as needed.
  • Demonstrated experience managing continuous monitoring responsibilities for IT systems.
  • Demonstrated experience managing vulnerability scanning responsibilities for IT systems.
  • Demonstrated experience supporting security planning, assessment, risk analysis and risk management using the Risk Management Framework (RMF).
  • An understanding of the security requirements for the proper handling and protection of government data in the IC.
  • Strong speaking, writing and presentation skills.
  • Demonstrated experience with writing detailed technical documentation for installation/configuration and O&M procedures.
  • Possess analytical and problem-solving skills for developing security solutions based on a set of requirements.

Security Clearance Level: Top Secret/SCI with Polygraph

Highly Desired skills and demonstrated experience:

  • Preferred certifications: Security+, Certified Information Systems Security Professional (CISSP), CompTIA’s Advanced Security Practitioner (CASP).

Location: Mclean, VA


  • Full-flex work week
  • 401K with company match
  • Internal mobility team dedicated to helping you own your career
  • Collaborative teams of highly motivated critical thinkers and innovators
  • Ability to make a real impact on the world around you




Work Requirements
Years of Experience

8 + years of related experience

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


CASP: CompTIA Advanced Security Practitioner - CompTIA

Security+ - CompTIA

Certified Information Systems Security Professional (CISSP) - (ISC)2

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.