Information Systems Security Officer (Active TS/SCI with Polygraph)

VulnU; McLean, Northern (VA, KY); Hybrid; USD 155,000 - 209,000; Full time

Benefits offered by this job

401K matching

Health benefits

Education support

Job summary

General Dynamics IT is seeking an Information Systems Security Officer (ISSO) to support customer operations. The role ensures information assurance across systems, maintaining RMF compliance, and delivering robust security documentation and risk assessments.

The ISSO will coordinate security controls, review SSPs and C&A packages, and oversee vulnerability management. Candidates should hold TS/SCI with Poly, have 10+ years of related experience, and possess strong written communication skills.

Qualifications

• Bachelor's Degree in a related discipline.
• 10+ years of related experience.
• US Citizenship required.
• Active TS/SCI with Polygraph clearance.

Responsibilities

• Provide information assurance support to systems and programs.
• Coordinate and implement cyber security policies, standards and RMF processes.
• Prepare SSPs, C&A packages and architecture diagrams.
• Perform vulnerability scanning and POA&M responses using NIST guidelines.

Skills

Certification & Accreditation

NIST SP 800-53

POA&M

RMF

AWS

Policy coordination

Education

Bachelor's degree in a related field

Tools

XACTA

AWS infrastructure

Job description

# Information Systems Security Officer (Active TS/SCI with Polygraph)GDIT · gdit.comCategory: Cloud SecurityLocation: USA VA McLeanSalary: $154,700 – $209,300Clearance: TS/SCI + Poly## Quality of lifeWhat the posting states. Hover or tap a perk to see the line it came from.* Retirement match* Paid parental leaveType of Requisition:RegularClearance Level Must Currently Possess:Top Secret SCI + PolygraphClearance Level Must Be Able to Obtain:NonePublic Trust/Other Required:NoneJob Family:Cyber and IT Risk ManagementJob Qualifications:Skills:Certification and Accreditation (C&A), NIST, Plan of Action and Milestones (POA&M), RMFCertifications:NoneExperience:10 + years of related experienceUS Citizenship Required:YesJob 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 a Information Systems Security Officer (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!HOW AN ISSO WILL MAKE AN IMPACTProvide information assurance support to system(s) and programDemonstrated experience with coordinating and implementing cyber security policies, standards and processesMaintain operational security posture for system(s) through customized Risk Management Framework (RMF) to ensure established security processes and procedures are followedEvaluate security solutions to ensure security requirements are met for processing classified informationProvide 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 documentationSupport programmatic and organization project and risk management review boardsPerform vulnerability scanning, risk assessment analysis using NIST 800-53 and prepare responses to Plan of Action and Milestones (POA&Ms)WHAT YOU’LL NEED TO SUCCEED:Education: Bachelor's Degree (Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Information Technology, Cybersecurity, or a closely related discipline)Required Experience: 10 yrsClearance: TS/SCI with PolygraphPreferred Technical Skills:XactaStrong knowledge of AWS infrastructure, Commercial cloud and cloud securityUnderstanding of NIST 800-53, NIST 800-37, RMF, ICD 503Strong written and oral communication skills to write technical analysis reports and security plansSecurity Clearance Level: TS/SCI with active polygraphPreferred Certifications:CompTIA SecurityCertified 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 SiteGDIT IS YOUR PLACE:401K with company matchComprehensive health and wellness packagesInternal mobility team dedicated to helping you own your careerProfessional growth opportunities including paid education and certificationsCutting-edge technology you can learn fromRest and recharge with paid vacation and holidays#WeAreGDIT#JET#GDITEnhanced2026#VA\\_2026AlumniThe likely salary range for this position is $154,700 - $209,300. 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:40Travel Required:Less than 10%Telecommuting Options:OnsiteWork Location:USA VA McLeanAdditional 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. About Our Work:We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events atgdit.com/tc.Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans