• Senior Windows Systems Administrator

    Leidos (Arlington, VA)
    …Requires an current 8140 IAT Level II (Intermediate or Advanced) certificate (CompTIA Security + or Systems Security Certified Practitioner (SSCP) ) Training ... on-call rotation schedule. **Basic Qualifications:** + Bachelor's degree in information systems , computer science, information security or related field and… more
    Leidos (01/07/26)
    - Related Jobs

  • Information System Security Engineer

    ManTech (Virginia Beach, VA)
    …and policies with emerging cybersecurity technologies, including access control, privileged access management, data security , network security , data loss ... of security tools including STIG Viewer, eMASSter, and Tenable Nessus and/or Security Center + Experience with cloud brokerages, preferably Navy + Knowledge… more
    ManTech (01/09/26)
    - Related Jobs

  • Principal Network Systems Engineer

    Saliense Consulting (Arlington, VA)
    …changes to OS, databases, applications, servers, storage, network, and backups in the data center as well as development environments. + Manages the ... best practices and cutting technology. + Manages team responsible for systems engineering, security engineering, and workstation and server vulnerability… more
    Saliense Consulting (01/06/26)
    - Related Jobs

  • Infoblox Systems Engineer - TS/SCI

    General Dynamics Information Technology (Sterling, VA)
    …of a broad range of technology towers ie: Storage, Virtualization, Intel, Networking, Data Center Migration and Disaster Recovery + In-depth knowledge of DNS, ... of a broad range of technology towers ie: Storage, Virtualization, Intel, Networking, Data Center Migration and Disaster Recovery + Knowledge of risk and… more
    General Dynamics Information Technology (11/26/25)
    - Related Jobs

  • Senior Cyber Security Analyst

    ManTech (Springfield, VA)
    …include, but are not limited to:** + Provide leadership and advanced Cyber Security Operations Center (CSOC) support, managing cyber and network sensor ... SSCP, or CCNA- Security ) + Experience with Windows and Linux operating systems + Working knowledge of current COTS Cybersecurity technologies + Familiarity with… more
    ManTech (01/10/26)
    - Related Jobs

  • SIGINT Systems Administrator (Low Band…

    CACI International (Hampton, VA)
    …be responsible for resolving IT hardware and software infrastructure (servers, network, security , etc.) issues using systems analysis techniques and procedures ... SIGINT Systems Administrator (Low Band Journeyman) Job Category: Information...administration for assigned infrastructure and establish and maintain system security . You will also apply security patches… more
    CACI International (12/15/25)
    - Related Jobs

  • Sccm/Mecm Systems Administrator

    Leidos (Alexandria, VA)
    …across multiple enclaves, classifications, and time zones. The System Administrator provides systems and software Operations and Maintenance (O&M) support in a large ... utilizing Microsoft's Endpoint Configuration Manager (MECM), previously known as System Center Configuration Manager (SCCM). This individual will work in a team… more
    Leidos (12/08/25)
    - Related Jobs

  • Junior Systems Architect

    General Dynamics Information Technology (Falls Church, VA)
    …Operations **Skills:** Communication,Enterprise Architecture,Enterprise IT Architecture,Network Architecture, Systems Design **Certifications:** CompTIA Security + ... oversees the development, operation, and modernization of enterprise-level IT systems , including networking, infrastructure, applications, and program management services.… more
    General Dynamics Information Technology (01/07/26)
    - Related Jobs

  • Windows Systems Administrator

    ManTech (Chantilly, VA)
    …sustain and improve the organization's Windows infrastructure as part of a collaborative systems team. Your focus will span operations, security , and integration ... This dynamic role is embedded in an innovative Big Data ecosystem where collaboration and growth are encouraged. **Responsibilities...test, install, integrate, and maintain new or updated operating systems + Apply security and firmware patches… more
    ManTech (12/03/25)
    - Related Jobs

  • Systems Administrator

    Amentum (Warrenton, VA)
    …architecture, deployment, and the use of integrated management tools for efficient data center operations + Solid understanding of networking principles, ... Amentum is seeking a Windows Systems Administrator to support our federal program in...is a DoD provided, TS//SCI, integrated voice, video, and data , global communications network that facilitates collaboration among senior… more
    Amentum (01/09/26)
    - Related Jobs