Information System Security Officer (ISSO) - TS/SCI with Polygraph

General Dynamics Information Technology, Inc.

$119K — $161K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Information Technology, Cybersecurity, or related field
  • 5+ years of experience in cybersecurity or IT risk management
  • Strong expertise in AWS infrastructure and cloud security
  • Solid understanding of NIST 800-53, RMF, ICD 503, and other regulatory frameworks
  • U.S. citizenship required
  • Top Secret SCI clearance required with an active polygraph

Responsibilities

  • Provide information assurance support for designated systems and programs
  • Coordinate and implement cybersecurity policies and standards
  • Maintain operational security posture using Risk Management Framework (RMF)
  • Evaluate security solutions for classified information processing
  • Manage configuration for system software, hardware, and networks
  • Prepare and review critical system documentation including SSPs and incident response plans
  • Conduct vulnerability scanning and prepare responses to POA&Ms

Benefits

  • 401K plan with company matching contributions
  • Comprehensive health and wellness packages
  • Opportunities for career development and paid certifications
  • Access to cutting-edge technology and learning environments
  • Generous paid vacation and holiday policies
Full Job Description
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:
5 + years of related experience
US Citizenship Required:
Yes

Job Description:

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: 5+ 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+
    • Certified Information System Security Processional (CISSP)
    • Certified Information Security Manager (CISM)
    • Certified Ethical Hacker (CEH)
    • AWS Certified Cloud Practitioner (CCP)
    • Microsoft Azure
    • Google Cloud Platform (GCP)
    • Location: McLean, VA - On Customer Site


    • 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


    #OpportunityOwned
    #GDITCareers
    #WeAreGDIT
    #JET
    #GDITEnhanced2026
    #VA_2026Alumni

    The likely salary range for this position is $119,582 - $161,788. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

    Scheduled Weekly Hours:
    40

    Travel Required:
    Less than 10%

    Telecommuting Options:
    Onsite

    Work Location:
    USA VA McLean

    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 to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

    Our Identity Verification Process:
    As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

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