• Sr or Lead zOS Mainframe Systems

    System One (Reston, VA)
    …8-10 years supporting IBM z/OS Systems in a SYSPLEX environment. + RACF - Security Administration (5-10 years) + z/OS Systems Programming (5-10 years) + ... Job Title: Senior / Lead z/OS Mainframe Systems Engineer Location: Mostly Remote (Occasional...mainframe tools (CA7, CA1, IBM RMM). + Guide RACF security administration and contribute to TLS/SSL, TCP/IP,… more
    System One (01/03/26)
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  • Software Engineer / Systems

    Cinteot (Springfield, VA)
    …(PHP, JavaScript,.NET Framework, ASP .NET) + Agile development + Background in Systems Administration on Windows based platforms + Windows Server Operating ... Software Engineer / Systems Administrator (location: Springfield, VA) The... Systems experience + Red Hat Linux Administration experience Education:… more
    Cinteot (11/06/25)
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  • Data Security Engineer

    BOOZ, ALLEN & HAMILTON, INC. (Arlington, VA)
    …and configuring data security solutions + Experience with data security and performing systems administration , including installation, configuration, ... Data Security Engineer Key Role: Architect, deploy,...+ Experience designing, implementing, configuring, operating, or testing IT systems or security infrastructure + Experience documenting… more
    BOOZ, ALLEN & HAMILTON, INC. (01/04/26)
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  • Senior Network Engineer

    BAE Systems (Sterling, VA)
    …provides engineering, integration and sustainment support for critical military platforms and systems . Intelligence & Security provides services and products to ... and application performance optimization functions across internal and customer systems . Additional responsibilities include: + Provide network administration more
    BAE Systems (12/12/25)
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  • F5 Systems Engineer - TS/SCI

    General Dynamics Information Technology (Sterling, VA)
    …None **Job Family:** IT Infrastructure and Operations **Skills:** Complex Systems ,Information Technology (IT), Systems Design **Experience:** 8 + years ... for the future. Our work depends on an F5 Engineer joining our team to support Government activities in...that improves the performance and reliability of the network security infrastructure + Monitors and troubleshoots platform and OS… more
    General Dynamics Information Technology (12/15/25)
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  • Senior Principal Security Engineer

    Oracle (Richmond, VA)
    …with network monitoring and telemetry solutions, network configuration management, linux systems administration + Experience leading security -related ... Core Services organization is looking for a Senior Principal Security Engineer that will be the technical...threat modeling and conducting secure design reviews of complex systems . + Prior coding background (eg Java, Go, C/C++,… more
    Oracle (11/25/25)
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  • Systems Engineer III

    Noblis (Chantilly, VA)
    Responsibilities As a ** Systems Engineer III** you will provide leadership in planning, designing, and implementing sophisticated additions and changes to ... management and integration functions across multi-enclave environments. + Implement comprehensive systems security strategies ensuring all systems are… more
    Noblis (12/22/25)
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  • Systems Engineer IV

    Noblis (Chantilly, VA)
    Responsibilities As a ** Systems Engineer IV** you will provide expert leadership in planning, designing, and implementing sophisticated additions and changes to ... multi-enclave environments with focus on Top Secret infrastructure. + Implement comprehensive systems security strategies ensuring all systems are current… more
    Noblis (12/22/25)
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  • Network Management Systems Engineer

    Leidos (Fort Belvoir, VA)
    **Description** Leidos is seeking a Network Management Systems (NMS) Engineer at Fort Belvoir, VA to support operations on a large, high-profile DOD contract. ... procedures, and best practices. + Collaborate with cross-functional IT teams (network, systems , security , DevOps) to ensure accurate monitoring coverage. +… more
    Leidos (12/24/25)
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  • Linux Systems Engineer

    William C Brown Inc (Springfield, VA)
    Linux Systems Engineer EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without ... Description Our work depends on a TS/SCI cleared Linux Systems Engineer joining our team to support...and eligibility to obtain a Poly. REQUIRED SKILLS: Linux systems administration DESIRED SKILLS: A deep expertise… more
    William C Brown Inc (12/25/25)
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