Information Systems Security Engineer (ISSE) - TS/SCI CI Poly
Tenica Gs
Chantilly, VA · Posted July 1, 2026
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About the job
Information Systems Security Engineer TS/SCI CI Poly
Department: Government Customer- Chantilly
Location: Chantilly, VA
MUST HAVE A TS/SCI Poly
The Information Systems Security Engineer (ISSE) provides support to the customer in the area of Cyber Security. Daily tasks include, but are not limited to:
Provide analytical and technical security recommendations to the customer
Lead the identification of projects’ security requirement
Participate in network design reviews and security testing for the customer’s networks
Coordinate with system development teams to ensure network security standards are followed and implemented correctly
Identify additional security requirements, based on RMF or as the result of security issues that put the customer’s systems at risk
Reviews and analyzes new systems (hardware and software) and provides recommendations concerning system security
Review Security Requirements Traceability Matrixes (SRTMs), System Security Plans (SSPs) and other IA documentation for completeness
Provide A&A and RMF guidance to system owners to ensure accreditation success
Qualifications:
Required:
Current U.S. Government Top Secret clearance with SCI eligibility
Favorably adjudicated Polygraph
Bachelors of Science Degree in Science, Technology, Engineering or Mathematics (STEM) or an advanced IA certification
DoD 8570 certification in IAT or IAM
Experience in security systems engineering involving various computer hardware and software operation systems and application solutions in both stand-alone and LAN/WAN configurations
Experience with security features and/or vulnerability of various operating systems as defined by NIST, DISA (STIGs), and USCYBERCOM
Experience with networks and systems security administration, operation systems security configuration and account management best practices
Experience implementing RMF Process and NIST 800-53 technical controls, as well as developing and maintaining associated certification and accreditation documentation
Desired:
Self-starter requiring limited direction and supervision
Experience briefing senior customer personnel
Ability to organize and prioritize numerous customer requests in a fast pace deadline driven environment
Familiarity with the customer’s Lifecycle Readiness process
Familiarity with Amazon Web Services (AWS)
Familiarity with customer's IA processes
Experience with IA vulnerability testing and related network and system test tools (i.e. retina, HBSS, EVSS, ACAS)
Experience with Splunk and ServiceNow
Familiarity with Cross Domain Systems (CDS)
Experience supporting IC or DoD in the Cyber Security Domain
TENICA is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.