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From the employer's careers site First seen 25 Oct 2026

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

GDIT McLean, VA On-site senior full-time

Salary

$154,700 - $209,300 per year

Apply on GDIT

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.

Responsibilities:

  • 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)

Requirements:

  • Bachelor's Degree (Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Information Technology, Cybersecurity, or a closely related discipline)
  • 10+ years of related experience
  • Active TS/SCI with Polygraph clearance
  • Strong written and oral communication skills to write technical analysis reports and security plans

Preferred Skills:

  • Xacta
  • Strong knowledge of AWS infrastructure, Commercial cloud, and cloud security
  • Understanding of NIST 800-53, NIST 800-37, RMF, ICD 503
  • 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)

Benefits:

  • 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

Skills

Required

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

Nice to have

  • Xacta
  • AWS infrastructure
  • Commercial cloud
  • cloud security
  • NIST 800-53
  • NIST 800-37
  • ICD 503
  • CompTIA Security+
  • CISSP
  • CISM
  • CEH
  • AWS Certified Cloud Practitioner (CCP)
  • Microsoft Azure
  • Google Cloud Platform (GCP)
Apply on GDIT