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Information System Security Engineer (ISSE)

Cyber Defense Technologies

Richardson, Texas, United States Full-time June 07, 2026
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Vacancy Description

Overview: CDT is seeking an experienced and skilled ISSE for a DoD program in Richardson, TX. This position is hands-on technical and will provide on-site security engineering, systems administration, and information assurance support to the program.



Clearance Requirements: An active Secret is required, Top Secret is preferred. Candidates who do not meet these clearance requirements will not be considered.



Responsibilities:

  • Experience with administering, maintaining, implementing upgrades, and ensuring the readiness of several classified virtual enterprise systems and corresponding technologies (e.g., VMware vSphere, Enterprise Linux, Cisco Systems (Switch, Router, NGFW), Palo Alto, Windows Server, Windows Workstation).

    • Knowledge of Cisco ISE/Forescout CounterACT NAC technologies preferred.



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