Information System Security Engineer (Active Polygraph Required)

Clearance Level
Top Secret SCI + Polygraph
Information Security
Bethesda, Maryland

REQ#: RQ120759

Travel Required: None
Public Trust: None
Requisition Type: Regular

We are GDIT. We support and secure some of the most complex government, defense, and intelligence projects across the country. At GDIT, cyber security is not just a singular part of our mission—it connects every one of us because it’s embedded into every aspect of what we do.

GDIT is your place. You make it your own by bringing your ideas and unique perspective to our culture. By owning your opportunity at GDIT, you are helping us ensure today is safe and tomorrow is smarter. Our work depends on an Information System Security Engineer (ISSE) joining our team to support Customer activities at Bethesda, MD.

At GDIT, people are our differentiator. As an ISSE supporting the Customer, you will be trusted to work on innovative solutions that will transform and enhance the Enterprise IT environment to meet the growing global mission. In this role, a typical day will include:

  • Ensure security policies and procedures are implemented
  • Experience with gaining an ATO for systems and working the systems through the assessment and authorization process
  • Experience with vulnerability scanning tools to include Nessus, AppDetective, WebInspect and other vulnerability scanning tools
  • Strong understanding of RMF, CNSSI 1253, NIST 800-53, NISPOM
  • Ability to create and maintain system BOE documents to include SSPs, architecture diagrams, contingency planning, and continuous monitoring documentation
  • Ability to write and modify documents to include SOPs, processes, and other guidance documentation
  • Experience with JIRA and requirements management


  • BA/BS degree or equivalent work experience
  • Min. of 16+ years of relevant experience
  • Active TS/SCI clearance with Polygraph

Desired Skills:

  • Security Certifications: CISSP, CISM, CISA, CEH, NCSF,CAP
  • Experience with cloud security


  • 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







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About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

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.