Information Systems Security Officer (ISSO)

Clearance Level
Top Secret
Information Security
Fort Meade, Maryland
Chantilly, Virginia

REQ#: RQ119473

Travel Required: Less than 10%
Requisition Type: Regular

GDIT is seeking an Information Systems Security Officer (ISSO) to help provide support on our Defense Enterprise Office Solutions (DEOS) contract in Fort Meade, MD or Chantilly, VA. Due to the nature of work this role entails, the employee must report onsite to Fort Meade or Chantilly at a minimum of 2 days a week, in addition to key meetings. 

The ISSO will work closely, continuing collaboration with all levels of personnel within the project areas, from senior managers to working-level personnel, fostering and facilitating integration of IA principals and methods into all aspects of the Information Technology/Information management (IT/IM) operations. Additional responsibilities include:

  • Assesses system security needs and provides corrective actions into a comprehensible security strategy.

  • Reviews and analyzes system architecture diagrams and networks.  

  • Supports Assessment and Authorization (A&A) and Interim Authorization To Test (IATT) requirements and processes and applies applicable federal regulations and guidelines, such as NIST SP 800-53, 800-37 and DoD guidelines. 

  • Performs technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assurance (IA) standards and regulations and recommends mitigation strategies.  

  • Validates and verifies system security requirements, definitions, and analysis, and establishes system security designs. 

  • Assists system security architects and system developers in the identification and implementation of appropriate information security functionality to ensure uniform application of Agency security policy and enterprise solutions.

  • Supports the engineering/development of security architectures and verifies the design and implementation of trusted relations among external systems and architectures.  

  • Assesses and mitigates system security threats/risks throughout the program life cycle. 

  • Reviews security controls and recommends change requests (CRs) when appropriate, analyzes CRs for viability and submits for validation, and creates CRs based on security needs.  

  • Implements/manages an effective and comprehensive Information Assurance (IA) program, under the direction of the Cybersecurity Senior Manager.

  • Demonstrates technical expertise in all IA functional areas, and ability to integrate this expertise with practical knowledge of the mission, objectives, and operations of the support program office.  

Required Qualifications:

  • Active DoD TOP Secret clearance. 

  • DoD IAT Level II certification (or higher) required upon hire. 

  • Bachelor’s Degree or equivalent work experience

  • 10 years work related experience

  • Worked 5 years or more in cybersecurity, enterprise architecture development and using tools related to enterprise security 

  • Experience using security tools and Harding methods like ACAS, STIGS, Sentinel, etc.

  • Basic knowledge of networking and cloud topologies, devises, and concepts. 

  • Prior performance in the role of ISSO , ISSE, ISSM , SCA or Cybersecurity Analyst  

  • Ability to thrive in a highly collaborative, fast-paced, growth-focused environment 

  • Experience working with commercial cloud services (AWS, Azure, GCP) is a plus. 

  • Excellent written and verbal communication skills 

  • Knowledge of the DoD Risk Manage Framework (RMF) processes, Federal Information Security Management Act (FISMA), Etc.   

  • Able to report onsite as indicated above

Desired Qualifications:

  • Experience using and operating in the Enterprise Mission Assurance Support Service (eMass) system






About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.