• Principal Systems Engineer

    V2X (Suitland, MD)
    …with integrity, respect, responsibility, and professionalism. We are hiring a Principal Systems Engineer - active TS/SCI clearance to support our ... is required to be onsite. The position requires an active Top Secret/SCI clearance and the ability to obtain...obtain and maintain a Counterintelligence (CI) Polygraph. The Senior-level Principal Systems Engineer shall lead… more
    V2X (11/15/25)
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  • Principal Systems Engineer

    General Dynamics Information Technology (Washington, DC)
    …15 + years of related experience **US Citizenship Required:** Yes **Job Description:** **Senior Principal Systems Engineer ** Seize your opportunity to make a ... personal impact as a Senior Principal Systems Engineer with GDIT. A career in systems engineering means designing and implementing the systems that… more
    General Dynamics Information Technology (11/08/25)
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  • Systems Engineer SME - Exchange…

    General Dynamics Information Technology (Washington, DC)
    …**US Citizenship Required:** Yes **Job Description:** **Senior Principal Systems Engineer - Exchange Messaging - Active Top Secret Required** Seize your ... opportunity to make a personal impact as a **Senior** ** Principal Systems Engineer for Exchange...8140/8570 IAT III compliance + **Security Clearance Level** : Active Top Secret + **Required Skills and Abilities** :… more
    General Dynamics Information Technology (11/06/25)
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  • Principal /Sr. Principal Cyber…

    Northrop Grumman (Fairfax, VA)
    …of the best work of your career. We are looking for you to join our team as a Principal Cyber Systems Engineer or Sr. Principal Cyber Systems ... program-related meetings with external contractors/offices. This requisition may be filled at either a Principal Cyber Systems Engineer or Sr. Principal more
    Northrop Grumman (08/22/25)
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  • Principal Network Systems

    Saliense Consulting (Arlington, VA)
    …the design, implementation, documentation, and troubleshooting of the enterprise server environment. The Principal Systems Engineer must have the ability to ... package. Saliense is now hiring a Senior Technical Consultant ( Principal Network Systems Engineer ) to...days/week onsite in Arlington, VA. Candidates must possess an active Secret clearance to be considered and must be… more
    Saliense Consulting (10/01/25)
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  • Systems Test Engineer

    Northrop Grumman (Chantilly, VA)
    …Mission Systems ** is seeking a candidate to fill a ** Systems Test Engineer / Principal Systems Test Engineer ** position. This position will ... kits. This requisition may be filled at either the ** Systems ** **Test Engineer ** or ** Principal **...concepts, and techniques **Preferred Qualifications for both levels:** + Active Top Secret/SCI security clearance + Experience in cable… more
    Northrop Grumman (10/23/25)
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  • Principal /Sr. Principal

    Northrop Grumman (Dulles, VA)
    …Northrop Grumman Space Systems Sector seeks a qualified Principal or Senior Principal Systems Engineer for the role of Ground Segment Systems ... technical briefings to customers and mission partners **\#NOVASPACE** **Basic Qualifications:** + ** Principal Engineer Level (T3)** - BS in STEM - Science,… more
    Northrop Grumman (10/17/25)
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  • Principal Systems Engineer

    Shuvel Digital (Dulles, VA)
    Job Title: Principal Systems Engineer Location: Dulles, VA - Hybrid Duration: Contract Clearance: Active Secret. Must be able to obtain DHS Suitability. ... capabilities to address emerging threats. We are seeking a Principal Systems Engineer to assess,...Must be a US Citizen * Must have an active Secret clearance and be able to obtain a… more
    Shuvel Digital (09/25/25)
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  • Sr. Principal Systems

    RTX Corporation (Dulles, VA)
    …Company managed by Collins Aerospace Applied Signal Technology (AST) is seeking a **Sr. Principal Systems Engineer / Technical Program Manager** to join our ... Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is...combined in the defense and/or intelligence industry as a systems engineer / project engineer more
    RTX Corporation (11/13/25)
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  • Principal / Sr Principal Vehicle…

    Northrop Grumman (Dulles, VA)
    …processing will be coordinated through program Security. **Basic Qualifications** **:** + ** Principal Engineer ** - Bachelor's degree or higher in Aerospace ... part of history, they're making history. Northrop Grumman Space Systems Sector seeks a qualified Vehicle Engineer ...degree and 6 years of applicable experience. + **Sr. Principal Engineer ** - Bachelor's degree or higher… more
    Northrop Grumman (10/31/25)
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  • Command, Control, Communications, and Battle…

    Chenega Corporation (Fort Belvoir, VA)
    Command, Control, Communications, and Battle Management (C3BM) Principal Systems Engineer Ft. Belvoir, VA Join our Talent Network Command, Control, ... Communications, and Battle Management (C3BM) Principal Systems Engineer Ft. Belvoir,...in STEM and 12+ years of relevant experience + Active Secret clearance + Experience with MDA/DoD systems more
    Chenega Corporation (09/14/25)
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  • Engineer / Principal Engineer

    Northrop Grumman (Dulles, VA)
    …and test activities at a customer location. This position may be filled as an Engineer (level 2) or Principal Engineer (level 3) depending on how ... history. Northrop Grumman has an immediate opening for a Systems Test Engineer on an exciting program...(level 3) of relevant experience + US citizen + Active or current Top Secret clearance with the ability… more
    Northrop Grumman (10/16/25)
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  • Principal Endpoint Security Systems

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity a ** Principal Endpoint Security Systems Engineer ** in our **National Security Sector's (NSS) ... Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security...a degree. + **To be considered must have an active TS/SCI with polygraph security clearance** **Preferred Qualifications** +… more
    Leidos (08/29/25)
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  • Principal Systems Engineer

    RTX Corporation (Springfield, VA)
    …problems that create a safer, more secure world. Raytheon Technologies is seeking a Principal Systems Engineer (MBSE) to provide enterprise-wide systems ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (10/13/25)
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  • CCSS Principal Systems

    RTX Corporation (Springfield, VA)
    …a safer, more secure world. Raytheon Field Engineering is anticipating an opportunity for a Principal Systems Engineer . This role is suited for a motivated ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (11/13/25)
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  • Principal /Sr. Principal Cyber…

    Northrop Grumman (Chantilly, VA)
    …make recommendations **Basic Qualifications for a Principal Cyber Software Test Engineer :** + **Candidate must currently have an active Secret security ... looking for you to join our team as a ** Principal ** **Cyber Software Test Engineer ** and **Sr....Engineer :** + **Clearance: Candidate must currently have an active Secret security clearance to be considered. Active more
    Northrop Grumman (11/01/25)
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  • Principal Systems Engineer

    RTX Corporation (Sterling, VA)
    …are eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret ** Principal Systems Engineer ** **- Operational Expert** This position ... business area. SS&S develops and builds simulators and training systems for both military and commercial customers, with the...of a degree, 12 years of relevant experience + Active and transferable US government issued secret security clearance… more
    RTX Corporation (11/04/25)
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  • Principal /Sr Principal Field…

    Northrop Grumman (Chantilly, VA)
    …be a part of our mission! We are looking for you to join our team as a ** Principal Field Engineer ** or **Sr. Principal Field Engineer ** based out of ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...hazardous locations. _This position can be filled as a Principal Field Engineer or Sr. Principal more
    Northrop Grumman (11/12/25)
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  • Principal OR Senior Principal Field…

    Northrop Grumman (Washington, DC)
    …Our employees are not only part of history, they're making history. Northrop Grumman Aeronautics Systems is looking to add a ** Principal OR Senior Principal ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...location. _This position can be filled at either the Principal Field Service Engineer - Network and… more
    Northrop Grumman (09/17/25)
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  • Acquisition Systems Engineer Senior…

    SAIC (Chantilly, VA)
    …efforts as part of an exciting and innovative set of programs. The **Acquisition Systems Engineer ** provides support to the Systems Program Office (SPO) ... in acquisition and execution of mission critical systems . The Acquisition Systems Engineer ...future contracts. **Qualifications** **Required Qualifications:** + Must possess an active TS/SCI clearance with polygraph. + Bachelors and 14… more
    SAIC (10/23/25)
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