• Software Engineer (SWE)

    CACI International (Fort Meade, MD)
    Software Engineer (SWE) Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular ... applied cyber concepts research. You will be creating hardware and software component design specifications and use appropriate industry standard development… more
    CACI International (12/25/25)
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  • Senior Software Engineer

    RTX Corporation (Anaheim, CA)
    …at hiring manager discretion.** Applied Signal Technology (AST) is seeking a **Senior Software Engineer ** who strives for excellence and have a passion to ... The ability to obtain and maintain a US government issued security clearance is required .​ US citizenship is required , as only US citizens are eligible for… more
    RTX Corporation (11/28/25)
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  • Intern - Software Engineer Intern…

    RTX Corporation (Aurora, CO)
    …The ability to obtain and maintain a US government issued security clearance is required .​ US citizenship is required , as only US citizens are eligible for ... a security clearance **Security Clearance:** TS/SCI without Polygraph At Raytheon, the foundation of everything we do is rooted in our values and a higher calling -… more
    RTX Corporation (01/08/26)
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  • Senior Software Engineer 25k Sign…

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Software Engineer (SWE) in our **National Security Sector's (NSS) Cyber & Analytics Business ... forefront in Security Engineering, Computer Network Operations (CNO), Mission Software , Analytical Methods and Modeling, Signals Intelligence (SIGINT), and… more
    Leidos (01/06/26)
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  • Senior Software Test Engineer

    BigBear.ai (Annapolis Junction, MD)
    …of reliability and performance. What you need to have + Active TS/SCI with Polygraph Required to support this mission-critical program. + Minimum of 10 years ... Overview BigBear.ai is seeking a Test Engineer to play a pivotal role in the...a highly visible US Government program focused on advanced software development, integration, and testing. If you're passionate about… more
    BigBear.ai (11/20/25)
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  • Software Engineer , Principal

    Parsons Corporation (Annapolis Junction, MD)
    …defense, cyber operations, and government modernization efforts. We are looking for a ** Software Engineer ** to help design and develop our **core data platform ... using cloud infrastructure) **Security Clearance Requirement:** An active Top Secret SCI w/ Polygraph security clearance is required for this position.​ This… more
    Parsons Corporation (10/25/25)
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  • Software Engineer 3

    Nightwing (Annapolis Junction, MD)
    …clear and concise manner. Active and transferable US government issued **TS/SCI with polygraph ** security clearance is required . US citizenship is required , ... ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive… more
    Nightwing (12/26/25)
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  • Cyber Software Engineer - SIGINT…

    Lockheed Martin (Hanover, MD)
    …\#OneLMHotJobs \#RMSRB2025 **Basic Qualifications:** * Current DoD Top Secret SCI with Polygraph Seeking multiple levels of Software Engineers: SWE0: * A ... discipline from an accredited college or university, plus twenty \(20\) years of software engineering experience\. Required Skills and Experience: * Analyze user… more
    Lockheed Martin (01/08/26)
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  • Senior Software Engineer - CTJ…

    Microsoft Corporation (Reston, VA)
    …in our Authorization, Credentials Management, and Security ecosystem. As a **Senior Software Engineer ** in Identity, working on our Authorization and Identity ... be able to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to… more
    Microsoft Corporation (01/10/26)
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  • Software Engineer (SWE-2)

    Leidos (Laurel, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business ... CI/CD processes, Splunk Dashboard development. + **Security Clearance:** Active TS/SCI with Polygraph required to be considered for this role. **At Leidos,… more
    Leidos (12/16/25)
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