• Security Infrastructure Engineer

    Leidos (Alexandria, VA)
    …and communications, including known ports and services. + Hands-on experience with the Windows and Linux operating system and their respective command ... and outages + Maintain, develop, and improve Security Infrastructure standard operating procedures and tactics, techniques, and procedures (TTPs) + Maintain complete… more
    Leidos (11/15/25)
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  • Network Engineer

    Assertive Professionals (Chantilly, VA)
    … Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016 + Designing and operating Microsoft Active Directory in a secure and ... network configurations, using knowledge of the performance characteristics of the systems being upgraded and the specifications for network interfaces to insure… more
    Assertive Professionals (11/21/25)
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  • Lead Digital Operations Engineer (Senior, Lead)

    The Boeing Company (Herndon, VA)
    …(including: Python, C#, Groovy, Java, REACT) + Experience with Windows and Linux operating systems and system administration of both + Experience with ... troubleshooting issues that can arise on operational systems + Experience creating shell scripts for system administration and monitoring **Preferred… more
    The Boeing Company (12/21/25)
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  • IT Support Specialist

    TekSynap (VA)
    …experience supporting Department of Defense (DoD) IT hosting solutions. + Experience administering Windows and Linux operating systems in large enterprise ... + Diagnoses and resolves customer-reported incidents involving hardware, software, and network systems . + Performs analysis of user requirements and IT processes to… more
    TekSynap (11/15/25)
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  • Sr Software Engineer

    Shuvel Digital (Dulles, VA)
    …Desired Skills: + Strong troubleshooting and networking skills + In depth knowledge of Windows , and Linux operating systems + Understanding of Cloud ... design, architecture, development, evaluation, testing, and integration of computer systems , appliances, and networks involving the architecture and implementation… more
    Shuvel Digital (09/25/25)
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  • Sr. Software Engineer TS/SCI Polygraph

    Leidos (Alexandria, VA)
    …ASN.1 encoding, XML canonicalization, digital signatures). Must have experience developing on Windows , and/or Linux operating systems . Must have documented ... member of our top-notch agile development team building a large complex enterprise system . Development includes the full range of turning Agile user stories into… more
    Leidos (12/10/25)
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  • Security Incident Analyst (SiA) - TS/SCI…

    General Dynamics Information Technology (Norfolk, VA)
    …to obtain and maintain a Polygraph. + Preferred Skills: Splunk, Proofpoint, Fidelis, Solera, Windows , and Linux Operating Systems . Location: On Customer Site ... is responsible for the mitigation of security incidents on DIA information systems . The SIA investigates incidents involving information technology (IT) assets and… more
    General Dynamics Information Technology (11/18/25)
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  • Senior Information Systems Security Officer

    Steampunk (Mclean, VA)
    …scanning execution, assessment, and analysis + Specialized knowledge and experience with the operating system ( Windows and/or Linux) and network (ie, Local ... **Overview** **Steampunk wants** you to be a **Senior Information Systems Security Officer (ISSO)** on our team to support...Acceptance Memos to assist in the effective management of system risks + Conduct an annual assessment in accordance… more
    Steampunk (12/13/25)
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  • Security Analyst

    Cognizant (Richmond, VA)
    …and Response (EDR) logs, Intrusion Prevention/Detection Systems (IPS/IDS), firewall logs, Windows logs, Linux operating system logs, etc. . Analyze ... on various log sources from Next-Gen firewalls, Domain Controllers, Linux operations systems , Anti-Virus logs, EDR/XDR, IPS/IDS, router and switch logs, etc. .… more
    Cognizant (12/19/25)
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  • Chief Engineer- Enterprise IT

    CACI International (Chantilly, VA)
    …+ Provide Subject Matter Expertise to the team for the following skillsets: Windows and Linux operating systems , RMF Hardening Compliance, Utilization ... technical leadership and subject matter expertise to an Information Technology (IT) Systems Engineering team supporting the Department of the Air Force (DAF)… more
    CACI International (10/04/25)
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