• Software , CNO , Systems

    Belay Technologies (Annapolis Junction, MD)
    …opportunity to join a dynamic, innovative team working on cutting-edge cybersecurity, network, software and systems engineering projects. We are hiring for a ... Analyst/Programmer is responsible for designing, coding, and maintaining software tools and solutions in support of CNO...test plans to ensure the quality and reliability of software and systems . This includes identifying bugs,… more
    Belay Technologies (11/13/25)
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  • Principal HPC Software Engineer

    GliaCell Technologies (Annapolis Junction, MD)
    …is to provide technical expertise that assists in sustaining critical mission-related software and systems to a large government contract. Key Responsibilities: ... Are you a Principal HPC Software Engineer who is ready for a new...customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions… more
    GliaCell Technologies (11/21/25)
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  • Automated Test Framework Software Engineer…

    Leidos (Annapolis Junction, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... has a new and exciting opportunity for an **Automated Test Framework Software Engineer** in our **National Security Sector's (NSS) Cyber & Analytics Business… more
    Leidos (09/27/25)
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  • Senior Systems Integration Engineer

    Leidos (Fort Meade, MD)
    …that support mission-critical operations. You will work hands-on with RF and FORNSAT systems and various Systems Administration (SA) components, ensuring ... team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence… more
    Leidos (12/03/25)
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  • Senior Linux Systems Administrator (NDA 4)

    Leidos (Annapolis Junction, MD)
    …: Bachelor's degree plus eleven (11) to fifteen (15) years of relevant systems administration experience or equivalent. + **Security Clearance** : Candidates ... team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence… more
    Leidos (10/09/25)
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  • Systems Network Administrator (SNA-0)

    Leidos (Laurel, MD)
    …: Bachelor's degree in technical discipline and two (2) years of relevant systems administration experience or a master's degree with less than two ... at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling,...a degree an additional five (5) years of relevant systems administration experience is required. + **Security… more
    Leidos (09/20/25)
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  • Principal Elasticsearch Systems Engineer

    Leidos (Bethesda, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... **Leidos** has a new and exciting opportunity for a **Principal** **Elasticsearch Systems Engineer** in our **National Security Sector's (NSS) Cyber & Analytics… more
    Leidos (10/30/25)
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  • Senior Systems Administrator 10k sign…

    Leidos (Annapolis Junction, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics Business… more
    Leidos (11/15/25)
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  • Systems Engineer (SME)

    Leidos (Bethesda, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... of complex OS, kernel and performance issues. + Installation, configuration, administration , support, and maintenance of systems , including associated hardware… more
    Leidos (12/11/25)
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  • Computer Network Operations (All Levels)

    Lentech, Inc (Hanover, MD)
    …Intrusion Detection Systems (IDS), Able to install and configure anti-virus software and spy-ware protection software , Able to design, write, and execute ... tackling some of the nation's most critical challenges in systems security and vulnerability? Would you consider joining a...are unique to a particular device, Provide support to CNO developers by evaluating CNO tools and… more
    Lentech, Inc (12/02/25)
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  • System Administrator Windows-TS/SCI Polygraph

    Leidos (Annapolis Junction, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... and resolved in a timely manner. She/he will provide support for all infrastructure systems and will respond to hardware and software incidents and work with… more
    Leidos (11/05/25)
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  • Manual Tester

    Leidos (Annapolis Junction, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... and executing system-level test procedures, evaluating changes made to software applications, and verifying defect corrective actions discovered during development,… more
    Leidos (11/25/25)
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  • Test Engineer SME

    Leidos (Bethesda, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... within Commercial cloud development environments. Flexible cross-training to also provide systems engineering, software development, training, and security is… more
    Leidos (11/07/25)
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  • Principal Test Engineer

    Leidos (Bethesda, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... within a commercial cloud environment. Flexible cross-training to also provide systems engineering, software development, training, and security. Job duties… more
    Leidos (10/31/25)
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  • Exploitation Analyst (EA)

    CACI International (Fort Meade, MD)
    …computer forensics, information assurance, systems engineering, and/or network and systems administration . Completion of military training in a relevant area ... at a rapid pace, CACI is at the forefront of cyber network operations ( CNO ) and enabling information superiority. We help our customers prepare, defend, and sustain… more
    CACI International (10/28/25)
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  • Computer Network Defense Analyst (Cnda)

    CACI International (Fort Meade, MD)
    …at a rapid pace, CACI is at the forefront of cyber network operations ( CNO ) and enabling information superiority. We help our customers prepare, defend, and sustain ... + Use information collected from a variety sources (eg, intrusion detection systems , firewalls, network traffic logs, and host system logs) to identify potential… more
    CACI International (10/28/25)
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  • Network Engineer

    Leidos (Fort Meade, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... to help design, build, and fine-tune the backbone of our mission-critical systems . If you're passionate about performance, security, and seamless connectivity, this… more
    Leidos (11/13/25)
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  • Principal Network Engineer

    Leidos (Bethesda, MD)
    …team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence ... **Primary Responsibilities:** + Responsible for architecture, design, installation, configuration, administration , support, and maintenance of networks, including associated hardware… more
    Leidos (10/31/25)
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  • COMSEC/Network Engineer

    Leidos (Laurel, MD)
    …from an accredited college or university. Five (5) years of additional systems administration /network engineering experience may be substituted for a bachelor's ... team is at the forefront in Security Engineering, Computer Network Operations ( CNO ), Mission Software , Analytical Methods and Modeling, Signals Intelligence… more
    Leidos (11/22/25)
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  • Digital Network Exploitation Analyst (Dnea)

    CACI International (Fort Meade, MD)
    …computer forensics, information assurance, systems engineering, and/or network and systems administration . Completion of military training in a relevant area ... at a rapid pace, CACI is at the forefront of cyber network operations ( CNO ) and enabling information superiority. We help our customers prepare, defend, and sustain… more
    CACI International (10/28/25)
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