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Information Systems Security Officer

GDIT
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McLean, VA, USA
Oct 09, 2026

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret SCI + Polygraph

Clearance Level Must Be Able to Obtain:

None

Public Trust/Other Required:

None

Job Family:

Cyber and IT Risk Management

Job Qualifications:

Skills:

Certification and Accreditation (C&A), NIST, Plan of Action and Milestones (POA&M), RMF

Certifications:

None

Experience:

10 + years of related experience

US Citizenship Required:

Yes

Job Description:

Seize your opportunity to make a personal impact as an Information Systems Security Officersupporting 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 IMPACT

  • 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
  • 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)

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+ yrs
  • Clearance: TS/SCI with Polygraph
  • Preferred Technical Skills:
  • Xacta
  • Strong knowledge of AWS infrastructure, Commercial cloud and cloud security
  • Understanding of NIST 800-53, NIST 800-37, RMF, ICD 503
  • 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

GDIT IS YOUR PLACE:

  • 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

#WeAreGDIT
#JET
#GDITEnhanced2026
#VA_2026Alumni

The 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:

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.

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 at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Job ID

RQ229531

Security Clearance

TS/SCI
About GDIT
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