• Sr. Software Engineer TS /SCI…

    Leidos (Alexandria, VA)
    **Description** Leidos has an exciting opportunity for a Sr. Software Engineer ! *Must have an active TS /SCI Polygraph up front. No exceptions.* You will perform ... as both an individual and a member of our top -notch agile development team building a large complex enterprise...XML canonicalization, digital signatures). Must have experience developing on Windows , and/or Linux operating systems . Must have… more
    Leidos (12/10/25)
    - Related Jobs
  • Illumio Zero Trust Segmentation Platform…

    ENS Solutions (Reston, VA)
    …cloud security, or infrastructure engineering. + 3+ years of expertise in Linux/ Windows systems , virtualization (VMware, Hyper-V), and cloud environments (AWS, ... Zero Trust program, influence architectural decisions, and help safeguard mission-critical systems by deploying one of the most advanced segmentation platforms in… more
    ENS Solutions (12/13/25)
    - Related Jobs
  • ForeScout Engineer - Active TS /SCI…

    ENS Solutions (Norfolk, VA)
    …maintenance of Forescout CounterACT appliances + 5+ years of experience performing systems administration for Windows or Linux, including performing basic ... security challenges. You will lead a team as they engineer solutions to complex challenges for customers using knowledge...center, WAN, and LAN in virtualized architectures + Active TS /SCI clearance; willingness to take a polygraph exam +… more
    ENS Solutions (12/06/25)
    - Related Jobs
  • Cyber Asset Attack Surface Management Deployment…

    ENS Solutions (Reston, VA)
    …solutions for hybrid cloud environments + 3+ years of experience performing systems administration in Windows , Linux, or VMware environments, including ... and manage CAASM solution deployment in accordance with the systems engineering lifecycle (SELC). Monitor, design, and onboard new...APIs with their usage for data integration + Active TS /SCI clearance; willingness to take a polygraph exam +… more
    ENS Solutions (12/13/25)
    - Related Jobs
  • Senior Software Developer - TS /SCI…

    Leidos (Reston, VA)
    …**Required clearance:** Candidates for consideration **must possess an active and in-scope** Top Secret clearance with the ability and willingness to obtain ... Mission Solutions Business Area at Leidos seeks a Software Engineer to lead the creation of new software capabilities...test, simulation, and verification of software simulation or decision systems . A successful applicant will be able to write… more
    Leidos (12/21/25)
    - Related Jobs
  • Fidelis Administrator - Active TS /SCI…

    ENS Solutions (Reston, VA)
    …and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and evaluation, solution ... deployments and configuration management. + Experience as a network administrator or systems engineer . + Experience in using Active Directory to manage… more
    ENS Solutions (12/27/25)
    - Related Jobs
  • Systems Engineer IV

    Noblis (Chantilly, VA)
    …server environments, and operating systems with special emphasis on Top Secret classification enclaves. Your extensive expertise in Nutanix hyper-converged ... changes to network hardware, infrastructure server environments, and operating systems in Top Secret environments....School diploma with 16 years of experience. + Active Top Secret ( TS ) clearance with… more
    Noblis (12/22/25)
    - Related Jobs
  • Systems Engineer III

    Noblis (Chantilly, VA)
    …server environments, and operating systems with special emphasis on Top Secret classification enclaves. Your experience in Nutanix hyper-converged ... Responsibilities As a ** Systems Engineer III** you will provide...School diploma with 14 years of experience. + Active Top Secret ( TS ) clearance with… more
    Noblis (12/22/25)
    - Related Jobs
  • Systems Administrator II Generalist Sr…

    V2X (Springfield, VA)
    …professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server - active TS /SCI clearance to support our government customer ... required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to...Administrator II shall work closely with the activity's Senior Systems Administrator, Network Engineer as well as… more
    V2X (11/15/25)
    - Related Jobs
  • Information System Security Engineer

    Amentum (Warrenton, VA)
    …program is to support, operate, and maintain the Distributed Continuity Integrated Network - Top Secret Enterprise Services (DCIN- TS ES) which is a ... further. Amentum is seeking a Senior Information System Security Engineer (ISSE) to join our team of passionate individuals...at multiple classifications levels. **Requirements:** * Must have active Top - Secret clearance with SCI or TS more
    Amentum (12/05/25)
    - Related Jobs