• Information Systems Security Manager

    M. C. Dean (Vienna, VA)
    …of key information technology concepts, platforms, and technologies, including Microsoft Windows and/or Linux operating systems , and system virtualization ... life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and...Tysons, Virginia, and employs more than 5,800 professionals who engineer and deploy automated, secure, and resilient power and… more
    M. C. Dean (09/13/25)
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  • Senior Information Systems Security Officer…

    Leidos (Fort Meade, MD)
    …**Leidos** has a new and exciting opportunity for a Senior Information Systems Security Officer (ISSO) in our **National Security Sector's (NSS) Cyber & ... Bonus** **Position Summary:** The Information System Security Officer (ISSO)/System Engineer is responsible for ensuring the confidentiality, integrity, and… more
    Leidos (10/16/25)
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  • System Administrator

    CACI International (College Park, MD)
    …Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to ... Administrator to join our team. **Responsibilities:** As a Mid-Level Linux Infrastructure Engineer with Networking Experience, you will play a pivotal role in… more
    CACI International (11/08/25)
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  • System and Network Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Annapolis Junction, MD)
    …chn ical skill and careful planning. That's why we need you, an experienced network engineer who knows how to develop the exact network the DoD needs. As a network ... engineer on our team, you'll use your experience in...and increase security, reliability, and availability for mission-critical network systems . You'll apply your expertise in routing and switching,… more
    BOOZ, ALLEN & HAMILTON, INC. (10/24/25)
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  • Digital Network Exploitation Analyst

    CACI International (Chantilly, VA)
    …Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type ... and penetration** **testing of the client's** **global network** **You will reverse engineer network layouts using data collected from the network itself to identify… more
    CACI International (10/29/25)
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  • Cloud System Administrator

    ManTech (Hanover, MD)
    …for Windows Server 2022 environments, including Active Directory, and manage Windows 10/11 client systems . + Architect, deploy, and maintain robust cloud ... Qualifications:** + Ten (10) years of experience as a Systems Administrator or Cloud Engineer supporting programs...to obtain it + Proficiency in administering Linux operating systems . + Experience with Windows Server 2022… more
    ManTech (09/10/25)
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  • System Administrator 2

    M. C. Dean (Annapolis Junction, MD)
    …to meet service level agreements. + Support configuration and management of Windows operating systems and install/load operating system software. + Perform ... Assurance (IA) standards. + Apply Security Technical Implementation Guides (STIGs) to Windows based operating systems (servers and workstations). + Perform daily… more
    M. C. Dean (11/05/25)
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  • System Administrator 1

    M. C. Dean (Annapolis Junction, MD)
    …monitoring and reviewing system logs. + Support configuration and management of Windows operating systems and install/load operating system software. + Support ... standards. + Support application of Security Technical Implementation Guides (STIGs) to Windows based operating systems (servers and workstations). + Support… more
    M. C. Dean (11/05/25)
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  • Cyber Security Specialist 3 - DMV

    M. C. Dean (District Of Columbia, DC)
    …defense, and security. Join our more than 4,500 employees worldwide who engineer and deploy automated, secure, and resilient power and technology systems ... essential for long-term system sustainability. Together we are creating the integrated systems and technologies that shape the built and cyber-physical world. **We… more
    M. C. Dean (08/30/25)
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  • Network Administrator

    Nightwing (Sterling, VA)
    …security breaches. + Operating Systems : Familiarity with various operating systems ( Windows , Linux, macOS) and their networking configurations. + Scripting: ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers'… more
    Nightwing (09/26/25)
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