• Exchange Engineer (Network Communications 4 )

    HII (Virginia Beach, VA)
    …+ Server Subject matter Expert + Must be able to obtain and maintain a US Top Secret security clearance + Strong attention to detail + Strong customer focus + ... Time/Salaried/Exempt Anticipated Salary Range: $94,795.00 - $150,000.00 Security Clearance: Secret Level of Experience: Senior This opportunity resides with Global… more
    HII (01/04/26)
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  • Information System Security Office (ISSO)

    Leidos (Chantilly, VA)
    …risk assessments, and support authorization processes. **Required Qualifications:** + Active Top Secret Security Clearance. + CompTIA Security+. + Bachelor's ... system administration, and security architecture principles. + Working knowledge of both Windows and Linux Operating systems . + Experience with Security… more
    Leidos (01/07/26)
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  • Senior Specialist, Cyber Infrastructure…

    L3Harris (Broomfield, CO)
    …into ground-up builds and ongoing security administration. + Integrate Linux and Windows systems within a unified IDM/Active Directory Domain and manage ... of national security. Job Title: Senior Specialist, Cyber Infrastructure Systems Engineer Job Code: 32451 Job Location: Denver, CO...are seeking a skilled and experienced Sr. Specialist, System Administrator to join our Denver, CO team. The ideal… more
    L3Harris (12/26/25)
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  • Mid-Senior Network Engineer

    Infinity Systems Engineering (Alexandria, VA)
    …- now, come be more with us! Job Summary: We are seeking a skilled Systems Administrator /Network Engineer to join our mission-driven team. This position offers a ... secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms...network engineering, administration, or related IT roles. + Clearance: TS /SCI, CI Poly + Required Skills: + Experience with… more
    Infinity Systems Engineering (01/03/26)
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  • Enterprise Logging Solution (ELS) Lead

    Tyto Athene (Ashburn, VA)
    …Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. +...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
    Tyto Athene (11/01/25)
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  • Systems Administration (Virtualization…

    Alaka'ina Foundation Family of Companies (Honolulu, HI)
    …The Alaka`ina Foundation Family of Companies (FOCs) is looking for a Systems Administrator (Virtualization Management, Storage Area Network, Backups) to support ... Systems Administration (Virtualization Management, Storage Area Network, Backups)...CLEARANCE: + Must be a US Citizen. + Minimum Secret clearance; must be TS eligible based… more
    Alaka'ina Foundation Family of Companies (12/20/25)
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  • SCIF Manager/IT Support (FC)

    Synergy ECP (Columbia, MD)
    …computer systems , networks, and software applications + Familiarity with Windows and Linux operating systems , hardware troubleshooting, and software ... hybrid role as a SCIF Manager and IT Support Administrator for one of our prime contracts. As the...our IT infrastructure. The ideal candidate will hold a TS /SCI Full Scope Polygraph clearance and possess a strong… more
    Synergy ECP (10/22/25)
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  • Cloud System Engineer - Level 2

    CACI International (Suitland, MD)
    …adhering to best practices and Responsible AI (RAI) policies. * Manage operating systems (Linux and Windows Server) within the cloud environment. * Collaborate ... Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of Travel Required: Up...as subnetting, routing, and firewalls. * Experience managing operating systems like Linux and Windows Server. *… more
    CACI International (10/29/25)
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  • Principal Electromechanical Engineer

    Northrop Grumman (Aurora, CO)
    …MCSA Windows Server 2016 + Linux: Linux+, LPIC-1, or Red Hat Certified Systems Administrator + Cisco Certified Network Associate (CCNA) + The ideal candidate ... associated power and communications cables + Software & Operating Systems : VMware (including ESXi, vSAN); Windows Server...with a completed PhD-STEM + **Must have an Active/Final TS /SCI DoD security clearance at the time of application,… more
    Northrop Grumman (12/19/25)
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  • Cloud System Engineer - Level 3

    CACI International (Suitland, MD)
    …compliance with cloud security best practices. * Debug, deploy, and manage operating systems (Linux and Windows Server) on cloud platforms. * Collaborate with ... Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of Travel Required: Up...Opportunity:** CACI is seeking a skilled and experienced Cloud Systems Engineer (Level 3) to join our dynamic team… more
    CACI International (10/29/25)
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