• Cyber Threat Hunt Analyst

    Leidos (Ashburn, VA)
    …(Previously ECSA - EC-Council Certified Security Analyst) + ENSA - EC-Council Network Security Administrator + ECIH - EC-Council Certified Incident ... cyber threats to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including local area… more
    Leidos (01/15/26)
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  • Cyber Detection Engineer

    Leidos (Ashburn, VA)
    …(Previously ECSA - EC-Council Certified Security Analyst) + ENSA - EC-Council Network Security Administrator + ECIH - EC-Council Certified Incident ... cyber threats to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including local area… more
    Leidos (12/19/25)
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  • Attack Sensing & Warning Analyst (T2 AS&W Analyst)

    Leidos (Ashburn, VA)
    …(Previously ECSA - EC-Council Certified Security Analyst) + ENSA - EC-Council Network Security Administrator + ECIH - EC-Council Certified Incident ... to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including...advanced security technologies including EDR, SIEM, and network security tools to monitor, triage, and… more
    Leidos (01/15/26)
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  • Security Control Assessor/Technical…

    Guidehouse (Arlington, VA)
    …Be Nice To Have **:** + SIX (6) or more years' experience as a Security / Network Administrator or Cybersecurity professional + Current DOD 8140 certification ... systems . Your duties will span common/core control tasks including assessments of security controls for assigned systems to ensure compliance with applicable… more
    Guidehouse (01/09/26)
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  • Incident Response Deputy Team Lead

    Leidos (Ashburn, VA)
    …(Previously ECSA - EC-Council Certified Security Analyst) + ENSA - EC-Council Network Security Administrator + ECIH - EC-Council Certified Incident ... to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including...minimum ONE of the following certifications:** + CompTIA Cyber Security Analyst (CySA+) + CompTIA Linux Network more
    Leidos (12/03/25)
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  • Network Infrastructure/ System

    CACI International (Mclean, VA)
    Network Infrastructure/ System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with ... * * **The Opportunity:** CACI is looking for a Network Infrastructure/ System Administrator to join...network operations + Responsible for troubleshooting and resolving network issues, implementing security measures and proactively… more
    CACI International (12/17/25)
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  • System Administrator

    Gromelski & Associates, Inc. (Manassas, VA)
    …of computing resources. **_System Administrator Required Tasks:_** + Performs duties as System Administrator on systems using Linux, Windows, and other ... operation for multi-user computer systems and coordinates with engineers and network administrators. + Sets up administrator and service account, maintains … more
    Gromelski & Associates, Inc. (12/17/25)
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  • System Administrator Lead

    System One (Mclean, VA)
    …NIPRNET, SIPRNET, JWICS, and Special Access Systems . * Support replication of network file share volumes via Distributed File System with Replication (DFS-R) ... Job Title: System Administrator Lead Location: Arlington, Virginia...Create/maintain a standalone workstation image in accordance with DOD security standards. * Provide systems recovery and… more
    System One (12/26/25)
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  • Senior Systems / Network

    Leidos (Quantico, VA)
    **Description** Leidos has an immediate opening for a Senior Systems / Network Administrator to support critical SMIT contract initiatives based in Quantico, ... largest IT services program for the Navy. The Senior Systems / Network Administrator will...creation, account transfers, and spillage resolution in compliance with security protocols. + Mitigate malicious email threats and maintain… more
    Leidos (01/06/26)
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  • Systems Administrator

    BAE Systems (Reston, VA)
    …expertise, monitoring system health, and performing troubleshooting. As a Systems Administrator , you will be responsible for conducting network ... , and aerospace company. We're seeking a highly skilled Systems Administrator to join our dynamic team,...+ Conduct network configuration, preventive maintenance, and system issue resolution + Lead advanced security more
    BAE Systems (12/30/25)
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