• Sentinel - Principal/Sr Principal Systems

    Northrop Grumman (Bellevue, NE)
    …Principal or Sr. Principal level_ + Must have an active US Government DoD Secret security clearance at time of application, current and within scope, with an ... Modeling (AFSIM) + Experience with applying hypervisors, cross-domain solutions, multi-level security systems , or modular open systems approach to… more
    Northrop Grumman (12/03/25)
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  • Senior Information Systems Security

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Information Systems Security Officer (ISSO)** in our **National Security ... a vital role in securing and maintaining the integrity of our information systems through robust security measures and compliance frameworks. This multi-year,… more
    Leidos (12/02/25)
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  • Systems Engineering and MBSE Analyst…

    The Boeing Company (Hazelwood, MO)
    …depending on business needs.** **This position requires the ability to obtain a US Security Clearance for which the US Government requires US Citizenship.** + ... Systems of Systems Architect (MSOSA), Rhapsody, or similar systems modeling software tools **Preferred Qualifications (Desired Skills/Experience):** +… more
    The Boeing Company (12/07/25)
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  • Intern- Systems Engineering Intern (Onsite)

    RTX Corporation (Fullerton, CA)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...create a safer, more secure world. The Multidisciplinary Integrated Systems Department (MISD) supports Raytheon by providing world class… more
    RTX Corporation (12/16/25)
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  • Principal Software Systems Quality Engineer

    RTX Corporation (Tewksbury, MA)
    …Status Requirements:** 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... bulletins, training manuals, user guides. + Integration experience: security , systems , software, hardware, connectivity, tools, equipment.… more
    RTX Corporation (12/16/25)
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  • Systems Engineer

    BAE Systems (Manchester, NH)
    …or experience with Agile Systems Engineering + Active United States security clearance , Top Secret, SCI Eligible **Pay Information** Full-Time Salary Range: ... **Job Description** Ready to make a difference? BAE Systems is looking Systems Engineering Leads...Year with PHD + Possess an Active US Government security clearance (with ability to possess TS)… more
    BAE Systems (11/07/25)
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  • Systems Engineering Section Manager

    BAE Systems (Nashua, NH)
    …100% of the time **Required Education, Experience, & Skills** + Active DoD Secret security clearance . + Bachelor's degree in a technical field such as ... Software, or Electrical Engineering. + Active DoD Top Secret security clearance . + Additional technical depth in...(EA) or Electronic Support Measures (ESM) + Model Based Systems Engineering (MBSE) experience. + System Performance Modeling more
    BAE Systems (11/07/25)
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  • Associate Systems Engineer

    The MITRE Corporation (Bedford, MA)
    …eligibility requirements, you must be a US Citizen to be considered for a security clearance . + This position requires a minimum of 50% hybrid on-site ... This position provides challenging opportunities to apply and expand one's systems architecture, modeling and tradespace analysis skills. Specific areas… more
    The MITRE Corporation (12/14/25)
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  • Junior Information Systems Security

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Junior Information Systems Security Officer (ISSO)** in our **National Security ... Business Area (CABA)** . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and … more
    Leidos (12/04/25)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …Validation (V&V) principles + The ability to obtain and maintain a Top Secret US Security Clearance is required + Systems Engineering Expertise: + Proven ... SNC is on the lookout for a Systems Engineer with expertise in sensor systems...ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required… more
    Sierra Nevada Company, LLC (09/24/25)
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