• Principal Java Developer

    Leidos (Bethesda, MD)
    …architecture, mentoring team members, and conducting code reviews. + Develops and directs software system validation and testing methods using Junit and Katalon ... a new and exciting opportunity for a **Principal** **Java Developer ** in our **National Security Sector's (NSS) Cyber &...implementation to customer use cases + Document and perform systems software development, including deployment of build… more
    Leidos (09/13/25)
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  • Sr. Java Developer

    Leidos (Bethesda, MD)
    …+ Participate in software programming initiatives and code reviews. + Develops software system validation and testing methods using Junit and Katalon and ... a new and exciting opportunity for a **Sr.** **Java Developer ** in our **National Security Sector's (NSS) Cyber &...implementation to customer use cases + Document and perform systems software development, including deployment of build… more
    Leidos (09/13/25)
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  • Java Developer

    Leidos (Bethesda, MD)
    …enhancement, using Java, JavaScript, Python, SpringBoot, Hibernate + Developing and directing software system validation and testing methods using Junit and ... has a new and exciting opportunity for a **Java Developer ** in our **National Security Sector's (NSS) Cyber &...implementation to customer use cases + Document and Perform systems software development, including deployment of build… more
    Leidos (08/08/25)
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  • ETL Java Developer

    Leidos (Bethesda, MD)
    …HTML, CSS, JavaScript, Java, Python, SpringBoot, and Hibernate. + Develop and direct software system validation and testing methods using Junit and Katalon. + ... us and make a difference in National** **Security!** **Job Summary** This ETL Java Developer SME role is supporting support mission-critical systems in an Agile… more
    Leidos (08/02/25)
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  • Database Developer

    Athenix Solutions Group, LLC (Chantilly, VA)
    …modern databases consistent with the Sponsor's business data strategy. The Database Developer shall provide support for deployment packaging, system maintenance ... Software Development Lifecycle process. Requirements + Active Clearance: TS /SCI with Polygraph?is required. + Demonstrated experience utilizing Oracle and… more
    Athenix Solutions Group, LLC (07/24/25)
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  • MarkLogic Developer (SME)

    Leidos (Bethesda, MD)
    …CSS, JavaScript, Java, Angular, Python, SpringBoot, and Hibernate. + Develop and direct software system validation and testing methods using Junit and Katalon. + ... has a new and exciting opportunity for a **MarkLogic Developer SME** in our **National Security Sector's (NSS) Cyber...You will have the opportunity to build and maintain systems , software , and cloud environments, while providing… more
    Leidos (08/02/25)
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  • Systems Engineer III

    Amentum (Annapolis Junction, MD)
    …a polygraph ( TS /SCI w/ polygraph) + Bachelor's degree in System Engineering, Computer Science, Information Systems , Engineering Science, Engineering ... engineering, interfacing, integration, and testing of specific components of complex hardware/ software systems to include requirements elicitation, analysis and… more
    Amentum (09/25/25)
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  • Python Developer

    ManTech (Fort Meade, MD)
    …role, you will develop, maintain, and enhance complex and diverse software systems (eg, processing-intensive analytics, novel algorithm development, manipulation ... system resource, or interface constraints. Will design, develop and modify software systems , using scientific analysis and mathematical models to predict and… more
    ManTech (09/20/25)
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  • Python Developer

    ManTech (Fort Meade, MD)
    …role, you will develop, maintain, and enhance complex and diverse software systems (eg, processing-intensive analytics, novel algorithm development, manipulation ... system resource, or interface constraints. Will design, develop, and modify software systems using scientific analysis and mathematical models to predict and… more
    ManTech (07/17/25)
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  • Principal User Interface Developer 25k Sign…

    Leidos (Columbia, MD)
    …user interface (UI) development who will play a key role in translating system requirements into software specifications, designing intuitive UI components, and ... . **Responsibilities Include:** + Collaborate with **Subject Matter Experts** and ** Systems Engineers** to fully understand system requirements and desired… more
    Leidos (09/02/25)
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