Type 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:Computer Security, Cybersecurity, DocumentationsCertifications:NoneExperience:8 + 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 an 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 IMPACTWork with others on program security team to provide for all aspects of security.Provide expert-level knowledge, both in context and execution with the Risk Management Framework to support a NIST SP 800-53 HHM systems through the A&A process.Construct thorough and complete security documentation to include, but not limited to, System Security Plans (SSPs), Plan of Actions and Milestones (POA&Ms), and any other artifacts to support the Body of Evidence (BOE), for sponsor's approval.Identify security controls and work with engineering, development and testing staff to construct proper test plans and procedures.Implement security audit reviews verifying that the audit records are collected and reviewed.Coordinate all security testing exercises, working with external assessment teams and technical staff.Configure and support various cloud native services to protect the security posture of the systemWHAT 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+ yrsPreferred Technical Skills: Demonstrated strong technical skills and analytic abilities, as well as experience performing system security analysis and risk management.Demonstrated experience with security in cloud environments.Demonstrated experience performing complex technical tasks in pursuit of overall goals with minimal direction.Demonstrated experience in translating an understanding of systems and applications into security test plans and perform hands on security testing.Demonstrated knowledge of risk management methodologies.Demonstrated experience to analyze test results and suggest mitigations for security problems.Demonstrated technical experiences with system configuration, development, and design specifically around enterprise systems and hypervisors.Demonstrated experience with Linux and virtual platforms.Documented working experience with public and private information security groups and organizations.Possesses experience with communicating vulnerability results and risk posture to senior executives.Possess a broad knowledge of Information Security policies and guidance, as well as the ability to assist in researching, evaluating, and developing relevant security policies and guidanceSecurity Clearance Level: TS/SCI with active polygraphPreferred 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 SiteGDIT IS YOUR PLACE:401K with company matchComprehensive health and wellness packagesInternal mobility team dedicated to helping you own your careerCutting-edge technology you can learn fromRest and recharge with paid vacation and holidays#OpportunityOwned #GDITCareers #WeAreGDIT #JET#VA_2026Alumni The likely salary range for this position is $158,626 - $214,611. 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