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Information System Security Officer; ISSO; TS​/SCI Polygraph

Job in McLean, Fairfax County, Virginia, USA
Listing for: General Dynamics Information Technology, Inc.
Full Time position
Listed on 2026-10-18
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security & Data Protection, IT Consultant
Salary/Wage Range or Industry Benchmark: 143000 - 162000 USD Yearly USD 143000.00 162000.00 YEAR
Job Description & How to Apply Below
Position: Information System Security Officer (ISSO) - 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:

Amazon Web Services (AWS), Cybersecurity, Plan of Action and Milestones (POA&M), Risk Management Framework

Certifications:

None

Experience:

8 + years of related experienceUS Citizenship

Required:

Yes

Job Description

Seize your opportunity to make a personal impact as an Information Systems Security Officer supporting customer activities. GDIT is your place to make meaningful contributions to challenging projects and grow a rewarding career. At GDIT, people are our differentiator. As an ISSO, you will help ensure today is safe and tomorrow is smarter. Our work depends on an ISSO joining our highly skilled team to be a premier provider of cyber security services to the customer.

We provide consummate cyber security risk management “as a service” platform across multiple fabrics and centers. We have responsibility to ensure operational IT capabilities provide the client with necessary timeliness, accuracy and security of information demanded from all our highly professional roles. Be the change, lead our change – join us!

  • Provide information assurance support to system(s) and program
  • Demonstrated experience with coordinating and implementing cyber security policies, standards and processes
  • Maintain operational security posture for system(s) through customized Risk Management Framework (RMF) to ensure established security processes and procedures are followed
  • Strong knowledge of AWS infrastructure, Commercial cloud and cloud security
  • Evaluate security solutions to ensure security requirements are met for processing classified information
  • Provide configuration management and documentation for system software, hardware, networks, enclaves, etc.
  • Prepare and review system documentation to include Systems Security Plans (SSPs), Certification and Accreditation (C&A) packages, architecture diagrams, contingency plan, incident response plan, and other documentation
  • Support programmatic and organization project and risk management review boards
  • Perform vulnerability scanning, risk assessment analysis using NIST 800-53 and prepare responses to Plan of Action and Milestones (POA&Ms)
  • Understanding of NIST 800-53, NIST 800-37, RMF, ICD 503, CNSSI 1253
  • Strong written and oral communication skills to write technical analysis reports and security plans
What you'll need to succeed Education

Bachelors (Computer engineering, Computer Science, Electrical Engineering, Information systems, Information Technology, Cybersecurity, or a closely related discipline)

Required Experience

8+ yrs

Preferred Technical Skills
  • Demonstrated experience with coordinating and implementing cyber security policies, standards and processes
  • Strong knowledge of AWS infrastructure, Commercial cloud and cloud security
  • Understanding of NIST 800-53, NIST 800-37, RMF, ICD 503, CNSSI 1253
  • Strong written and oral communication skills to write technical analysis reports and security plans
Security Clearance Level

TS/SCI with active polygraph

Preferred Certifications
  • CompTIA Security+
  • CISSP
  • CISM
  • CEH
  • AWS Certified Cloud Practitioner (CCP)
  • Microsoft Azure
  • Google Cloud Platform (GCP)

Location:

McLean, VA - On Customer Site

Scheduled Weekly

Hours:

40

Travel Required:

Less than 10%

Telecommuting Options:
Onsite

Work Location:

USA VA Mc Lean

Additional Work Locations:
Total Rewards at GDIT:
Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up…

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