Information System Security Engineer (ISSE)

Clearance Level
Top Secret SCI + Polygraph
Information Security
La Plata, Maryland

REQ#: RQ121176

Travel Required: 10-25%
Requisition Type: Regular

Government Eligibility Requirements: 

  • Candidate must be able to favorably pass government background investigation 
  • Candidate must have, at a minimum, a Top Secret clearance w/t polygraph. 
  • Maintain Certification in accordance with DoD Directive 8140.01 Cyberspace Workforce Management requirements 
  • U.S. Citizenship eligibility requirements. 

Team Responsibilities: 

  • Minimum of 3-5 years specific experience with ICD 503 and NIST 800-53 policies. 
  • Excellent communication skills with the ability to state messages in a clear and concise manner over any form of communication. 
  • Ability to multi-task, prioritize, and re-prioritize work in a fast paced environment 
  • Senior level of experience in engineering IT systems, as well as working knowledge of current technologies. 
  • Ability to learn an application environment in order to update or create supported security documentation. 
  • The candidate will perform all tasks related to perform a system Certification and Accreditation and assuring the system is compliant with all required security controls as defined by agency policies. 
  • The candidate will review system configurations to ensure they are in accordance with agency hardening guidelines. 
  • The candidate will review all proposed change requests related to system design / configuration and perform security impact analysis. 
  • The candidate will review monthly vulnerability scan reports and track and address weaknesses in POA&Ms as needed. 
  • Perform security system event analysis, investigation, and validation  
  • Provide incident response to classification spills, malware infection, misconfiguration exposure, internal inappropriate behavior and technical issue  
  • Perform Security Technical Implementation Guide (STIG) and Federal Information Security Management Act (FISMA) assessments and annual reporting 

Ideal Candidate: Candidates who are highly motivated, passionate in their IT security tradecraft, and looking to make a positive difference every day are best suited for this position.  Candidates should possess a general level of understanding and basic level of experience across all team roles and responsibilities with a concentration of significant experience in at least 2-3 skill sets below.  

Preferred Skill Sets: 

  • BS degree in Computer Science or Information Technology (5 years’ experience without degree) 
  • 2-3 years fulfilling Information System Security Engineer (ISSE)  
  • 2-3 years fulfilling Windows and/or Unix administrator role or support     
  • Experience using XACTA data base applications and the ICD 503, NIST 800-83 rev4 policy 


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.