• Epsilon, Inc (Arlington, VA)
    **Network Administrator III** **Epsilon is now part of AMERICAN SYSTEMS!** We are pleased to announce Epsilon, Inc. has joined AMERICAN SYSTEMS. Together, we're ... view customer service as a top priority. **An average day:** As Network Administrator III, you will be responsible for managing and optimizing the network… more
    DirectEmployers Association (10/17/25)
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  • Firewall Administrator

    Chenega Corporation (Arlington, VA)
    **Req ID:** 37933 **Summary** ** Firewall Administrator ** **Arlington, VA** Are you ready to enhance your skills and build your career in a rapidly evolving ... cutting-edge technology and take your career to the next level! The ** Firewall Administrator ** is responsible for designing, implementing, and maintaining secure… more
    Chenega Corporation (10/03/25)
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  • Linux/UNIX Systems Administrator

    General Dynamics Information Technology (Springfield, VA)
    …Deliver innovative, simple solutions to complex problems as a Linux/UNIX Systems Administrator at GDIT. Here, you'll tailor cutting-edge solutions to the unique ... GDIT, people are our differentiator. As a Linux/UNIX Systems Administrator - Geospatial Systems , you will help ensure...and Cloud Technologies + LAN and WAN technologies + Firewall technologies + DMZ Architectures + Enterprise class storage,… more
    General Dynamics Information Technology (10/11/25)
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  • SharePoint Administrator Expert (SME)…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …related experience **US Citizenship Required:** Yes **Job Description:** **SharePoint Administrator Expert (SME) - TS/SCI required** Make meaningful contributions ... most complex government, defense, and intelligence projects. Join GDIT as a **SharePoint Administrator Expert (SME)** with for a career where your growth is just as… more
    General Dynamics Information Technology (10/07/25)
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  • Cloud Administrator - Infrastructure as…

    FGS, LLC (Mcb Quantico, VA)
    Cloud Administrator - Infrastructure as a Service (IaaS) SpecialistMCB Quantico, VA Requires US Citizenship Employment Term and Type: Regular, Full Time Required ... TS/SCI Required Education: High School or Equivalent **Job Description:** The Cloud Administrator - Infrastructure as a Service (IaaS) Specialist helps align the… more
    FGS, LLC (09/24/25)
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  • TS/SCI Sr SharePoint Administrator

    Insight Global (Mount Vernon, VA)
    Job Description Insight Global is looking for a SharePoint Administrator SME to support one of our large federal clients on a long-term DoD contract. This person ... duties include but are not limited to: * Provides Microsoft SharePoint 2019 administrator support for a large customer within the DoD community. Administrator more
    Insight Global (10/16/25)
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  • Network Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a Mid-level Forward Deployed Network Administrator to join our Network Engineering Team within the Engineering Operations group at ... resets, activations, and break/fix baseline problems. + Analyze syslogs, perform firewall ACL modifications, route tracing, and interface status monitoring on Cisco… more
    Leidos (08/16/25)
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  • NCIS SharePoint Administrator | Active…

    General Dynamics Information Technology (Quantico, VA)
    …Yes **Job Description:** Transform technology into opportunity as a **SharePoint Administrator ** at GDIT. Shape what's next for mission-critical government projects ... States Navy and Marine Corps. **MEANINGFUL WORK AND PERSONAL IMPACT** As a **SharePoint Administrator ** , the work you'll do at GDIT will be impactful to the mission… more
    General Dynamics Information Technology (10/04/25)
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  • Systems Administrator

    Leidos (Alexandria, VA)
    **Description** **Leidos- Systems Administrator ** **Location:** Alexandria, VA **Clearance Required:** Active DoD Top Secret (SCI eligibility) ️ **Sector:** Leidos ... immediate job opening in Alexandria, Virginia for a **Systems Administrator ** to contribute to the support of the Office...+ Work with the Joint Service Provider to implement firewall rules to allow the successful use of JDS… more
    Leidos (10/07/25)
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  • ABAD System Administrator (International…

    Parsons Corporation (Centreville, VA)
    …what's possible. **Job Description:** Parsons is looking for an amazingly talented **Systems Administrator ** to join our team! In this role you will get to design, ... + 5 + years of experience in a System Administrator role + Experience with virtualization + Experience with...Hat Enterprise Linux + Experience with routers, switches, and firewall configuration + Understanding of STIG, SCAP, and RMF… more
    Parsons Corporation (10/14/25)
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  • Linux Systems Administrator - TS/SCI Poly

    Parsons Corporation (Centreville, VA)
    …possible. **Job Description:** Parsons is seeking a mid-level Linux Systems Administrator . The candidate will support both Linux based workstations and servers ... Linux services + Understanding of basic networking technologies (TCP/IP, UDP, Firewall ) Desired Skills: + Familiar with virtualization and Docker technologies +… more
    Parsons Corporation (10/18/25)
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  • Systems Administrator /Engineer…

    Shuvel Digital (Vienna, VA)
    Description: We are looking for a Mid level Systems Administrator /Engineer that can come in to take ownership of day-to-day operations. You will partner with ... and control processes are required + Strong knowledge of network, firewall , routing, switching, load balancing, and proxy principles and troubleshooting related… more
    Shuvel Digital (09/25/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    **Description** The National Security Sector at Leidos is seeking a **Senior System Administrator ** to join a dynamic team based in **Tysons Corner, VA** . This ... + Hardware: Network Attached Storage (NAS) deployment and maintenance; Firewall , switch and router installation, deployment and maintenance; server **Additional… more
    Leidos (07/29/25)
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  • Senior Linux Administrator

    General Dynamics Information Technology (Falls Church, VA)
    …the basis for IT Service Management (ITSM) model. **HOW A SENIOR LINUX ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system administration support for Linux ... and scripts. + Implement, configure, update, and maintain the Linux operating system firewall . + Experience in handling NFS, CIFS, and SMB permissions. **WHAT YOU'LL… more
    General Dynamics Information Technology (08/09/25)
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  • Senior Network Administrator

    Spectrum Comm Inc (Falls Church, VA)
    The Senior Network Administrator manages and maintains the headquarters' network infrastructure, ensuring high availability, performance, and security. This position ... oversees routing, switching, firewall configuration, and supports network-related projects. Key Responsibilities + Configure and manage routers, switches, firewalls,… more
    Spectrum Comm Inc (08/09/25)
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  • Network Operations Center (NOC)…

    Leidos (Arlington, VA)
    …within Leidos' Defense Group is seeking a **Network Operations Center (NOC) Administrator ** to provide coverage monitor tools and availability of the Compartmented ... connection. + VLAN configurations + Network trouble shooting. + Basic Firewall troubleshooting and configuration + Basic ISE/TACACs troubleshooting and configuration… more
    Leidos (10/03/25)
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  • Cloud Security Manager - Microsoft Azure

    Deloitte (Mclean, VA)
    …of third-party technologies to assist in securing the Azure platform such as firewall , WAF, PAM and cloud workload protection. + Assist clients with configuration ... subscription management and configuration, identify management and access control, firewall management, auditing and monitoring, security incident and event… more
    Deloitte (09/13/25)
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  • Linux Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    …Job Description: The Systems Engineering team is seeking a driven Senior Systems Administrator that is highly technical and mission focused. This ideal candidate is ... ready to operate as aTIER 3 level Linux Administrator , experienced in managing large amounts of data and...and Cloud Technologies - LAN and WAN technologies - Firewall technologies - DMZ Architectures - Enterprise class storage,… more
    Arena Technical Resources, LLC (10/14/25)
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  • Information System Security Engineer (ISSE)

    Assertive Professionals (Chantilly, VA)
    …access control mechanisms; defining and configuring the appropriate firewall settings; conducting intrusion detection and prevention; conducting vulnerability ... + Certified Information Systems Security Professional (CISSP) Certification(s). + Certified Splunk Administrator *Click here to read more about how we protect your… more
    Assertive Professionals (10/09/25)
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  • Platform/Infrastructure Engineer

    Nightwing (Sterling, VA)
    …operating systems. + Networking: Knowledge of network protocols, routing, and firewall configurations. + Scripting: Proficiency in scripting languages like Python, ... Linux Certifications: Linux Professional Institute (LPI), Certified Linux System Administrator (CLSA). + Infrastructure-as-Code Certifications: Terraform Certified Professional. +… more
    Nightwing (09/26/25)
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