• Lead SIGINT Systems Engineer

    CACI International (Aberdeen Proving Ground, MD)
    Lead SIGINT Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: ... * **The Opportunity:** CACI is seeking a Lead SIGINT Systems Engineer to join our Aberdeen Proving...PhD in Electrical Engineering + Must hold an active TS / SCI clearance with a polygraph + 30+… more
    CACI International (12/07/25)
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  • Systems Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    Systems Engineer Location: Springfield, VA, US Job ID: ATR 17030 Job Description Overall Assignment Description: Expert-level Systems Engineers assist in ... Engineering, Physics, Mathematics, Operations Research, Engineering Management, Computer Science, Information Technology, Management Information Systems , or… more
    Arena Technical Resources, LLC (11/29/25)
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  • Systems Engineer

    KBR (El Segundo, CA)
    Title: Systems Engineer Belong. Connect. Grow. with KBR!...team on site in El Segundo, CA. An active TS / SCI clearance is required. Join a small, hand ... selected systems engineering team defining the next generation of space...other collaborative tools + Eligibility for or an active TS / SCI Security Clearance is required to be… more
    KBR (11/26/25)
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  • Spacecraft Systems Engineer

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a **Spacecraft Systems Engineer ** . This position is located in **Chantilly, VA** and requires an **active TS / SCI ... support a program office for a Major System Acquisition who requires a mid-career engineer with technical expertise in systems engineering who is anxious to grow… more
    SAIC (11/06/25)
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  • Systems Engineer

    CACI International (Wright Patterson AFB, OH)
    Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: Regular Percentage of Travel ... * * **The Opportunity:** CACI is seeking a mid-level Systems Engineer to support operations and maintenance... Engineering best practices **Qualifications:** _Required:_ + A current TS / SCI clearance is required. CI Polygraph may… more
    CACI International (10/24/25)
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  • Spacecraft Systems Engineer

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a **Spacecraft Systems Engineer ** . This position is located in **Chantilly, VA** and requires an **active TS / SCI ... support a program office for a Major System Acquisition who requires a mid-career engineer with technical expertise in systems engineering who is anxious to grow… more
    SAIC (10/02/25)
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  • Sr. Specialist, Systems Engineer 1

    L3Harris (Greenville, TX)
    …platforms. + Active Secret at the time of hire with the ability to obtain a Top Secret with SCI . + Must be a US Citizen. P referred Additional Skills: ... the interest of national security. Job Title: Sr. Specialist, Systems Engineer Job Code: 30672 Job Location:...+ CompTIA Security+ Certification + Active Top Secret with SCI . #LI-AH1… more
    L3Harris (11/08/25)
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  • Sr. Scientist, Systems Engineer

    L3Harris (Greenville, TX)
    …documents. + Travel up to 10% of the time. + Ability to obtain and maintain a Top Secret with SCI . Clearance. + Other duties as assigned by Supervisor. ... the interest of national security. Job Title: Sr. Scientist, Systems Engineer Job Code: 30671 Job Location:...be a US Citizen. Preferred Additional Skills: + Active Top Secret with SCI . #LI-AH1… more
    L3Harris (11/01/25)
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  • Sr. Specialist, Aerial Network Systems

    L3Harris (Salt Lake City, UT)
    …cyber domains in the interest of national security. Job Title: Senior Specialist, Network Systems Engineer Job Code: 31288 Job Location: Salt Lake City, Utah Job ... have every other Friday off Job Description: The Network Systems Engineer will support the Air Force's...experience. Preferred Additional Skills: + US DoD Security Clearance: TS / SCI preferred + Professional certification specific to… more
    L3Harris (11/20/25)
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  • Principal Endpoint Security Systems

    Leidos (Bethesda, MD)
    …**Leidos** has a new and exciting opportunity a **Principal Endpoint Security Systems Engineer ** in our **National Security Sector's (NSS) Cyber & ... Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security...degree. + **To be considered must have an active TS / SCI with polygraph security clearance** **Preferred Qualifications**… more
    Leidos (11/28/25)
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