Information Systems Security Officer, TS/SCI w/Polygraph

General Dynamics IT; McLean (VA); On-site; USD 159,000 - 215,000; Full time

Benefits offered by this job

401K with company match

Comprehensive health and wellness

Job summary

General Dynamics IT seeks an Information Systems Security Officer (ISSO) to support customer activities at the McLean, VA site. You will ensure information security across multiple fabrics and centers, coordinating RMF-based risk management and security documentation.

Qualified candidates will have 8+ years of related experience, a TS/SCI with polygraph clearance, and strong knowledge of AWS cloud security and NIST RMF requirements. On-site work and ongoing professional growth are offered.

Qualifications

• 8+ years of related experience; US Citizenship required
• Strong knowledge of AWS infrastructure and cloud security
• Understanding of NIST 800-53, NIST 800-37, RMF, ICD 503
• Excellent written and oral communication skills

Responsibilities

• Provide information assurance support to systems and programs.
• Coordinate and implement cyber security policies, standards and processes.
• Maintain security posture through RMF and ensure security procedures are followed.
• Prepare and review documents such as SSPs, C&A packages and architecture diagrams.
• Support risk management reviews and incident response planning.

Skills

Information Assurance

Information Security

Risk Management

Education

Bachelor's degree in Computer Science / Engineering / Information Systems

Job description

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:

Information Assurance, Information Security, Risk Management Certifications:

None Experience:

8 + years of related experience US 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 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.
• 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

Required Technical Skills:

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 $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:

40

Travel Required:

Less than 10%

T elecommuting Options:

Onsite

Work Location:

USA VA McLean

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 tra