• Principal /Sr. Principal

    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 ... meetings with external contractors/offices. This requisition may be filled at either a Principal Cyber Systems Engineer or Sr. Principal more
    Northrop Grumman (11/21/25)
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  • Sr Principal Cybersecurity Analyst/Network…

    Northrop Grumman (Chantilly, VA)
    …to join our diverse team of engineers, system administrators, and operators as a Sr. Principal Cyber Systems Engineer professional in Chantilly, VA. The ... but not limited to Standard Operating Procedures and VISIO diagrams. **Senior Principal Cyber Systems Engineer Basic Qualifications:** + Must have… more
    Northrop Grumman (01/01/26)
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  • Staff Cybersecurity Analyst / Information…

    Northrop Grumman (Fairfax, VA)
    …to join our diverse team of engineers, system administrators, and operators as a Principal Cyber Systems Engineer professional in Chantilly, VA. ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (01/10/26)
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  • Senior Principal Cyber

    Nightwing (Sterling, VA)
    …customers in the intelligence community, defense, civil, and commercial markets. **Sr. Principal Cyber Engineer ** Nightwing provides technically advanced ... Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and...that is vital to our national security, apply today! ** Principal Cyber Engineer ** Cyber more
    Nightwing (01/09/26)
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  • Principal Cyber Security…

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports ... infrastructures across classified and unclassified environments. You will work alongside cyber experts to develop solutions that enhance network compliance and… more
    ManTech (12/13/25)
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  • Senior Principal Cyber Security…

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role ... include but are not limited to:** + You will engineer , design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment...+ A Bachelor's degree or 4+ additional years of cyber experience in lieu of a degree + 10+… more
    ManTech (12/13/25)
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  • Sr. Principal Cyber Software…

    Northrop Grumman (Chantilly, VA)
    …of your career. **Northrop Grumman Mission Systems ** is seeking an experienced **Senior Principal Cyber Software Engineer ** to join our team supporting a ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...Sector site in Chantilly, VA. As a Senior Software Engineer on the Mobile Development team, you will be… more
    Northrop Grumman (10/21/25)
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  • Principal Systems Engineer

    V2X (Springfield, VA)
    …complex challenges with integrity, respect, responsibility, and professionalism. We are hiring a Principal Systems Engineer - active TS/SCI clearance to ... the ability to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior-level Principal Systems Engineer shall lead a diverse, multi-… more
    V2X (11/25/25)
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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...Experience in installation and testing of security patches and cyber security products. + Hands-on experience designing and supporting… more
    Saliense Consulting (01/06/26)
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  • Principal Endpoint Security Systems

    Leidos (Bethesda, MD)
    …new and exciting opportunity a ** Principal Endpoint Security Systems Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... Security!** **Job Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security Engineering team. The… more
    Leidos (11/28/25)
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  • Principal Elasticsearch Systems

    Leidos (Bethesda, MD)
    …new and exciting opportunity for a ** Principal ** **Elasticsearch Systems Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business ... us and make a difference in National Security!** **Job Summary** The Principal Elasticsearch Systems Engineer role provides support across an Agile team in… more
    Leidos (10/30/25)
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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 ... engineering and integration; enterprise IT, including cloud services; cyber ; software; advanced analytics and simulation; and training. We… more
    SAIC (11/21/25)
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  • Elastic Principal Software Engineer

    BCMC (Dulles, VA)
    BCMC provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission support services to meet our customers' ... most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency,...(CKA), or Certified Kubernetes Security Specialist (CKS) DOM-TO9-3495 Software Engineer - Principal I - ESW05 Our… more
    BCMC (01/06/26)
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  • Identity and Access Management Senior…

    General Dynamics Information Technology (Washington, DC)
    …you advance your career. Join GDIT as an Identity and Access Management Senior Principal Engineer you will build an impactful career in enterprise IT, ... like you. MEANINGFUL WORK AND PERSONAL IMPACT As an Identity and Access Management Senior Principal Engineer , the work you'll do at GDIT will be impactful to the… more
    General Dynamics Information Technology (11/01/25)
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  • Senior Principal Applications Delivery…

    General Dynamics Information Technology (Washington, DC)
    …our customers operate while you advance your career. Join GDIT as a Senior Principal Applications Delivery Network Engineer and build an impactful career in ... driven and resourceful like you. MEANINGFUL WORK AND PERSONAL IMPACT As a Senior Principal Applications Delivery Network Engineer , the work you'll do at GDIT… more
    General Dynamics Information Technology (11/01/25)
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  • Principal Process Engineer

    Parsons Corporation (Centreville, VA)
    …your full potential. Unleash your talent and redefine what's possible. **Job Description:** ** Principal Process Engineer - Wastewater Systems - Los Angeles, ... CA** **OPPORTUNITY** : The **Wastewater Principal Process Engineer ** provides technical leadership and...engineering services for projects. + Experience with municipal wastewater systems is essential + Professional Engineer (PE)… more
    Parsons Corporation (10/30/25)
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  • Principal Infrastructure Engineer

    Nightwing (Sterling, VA)
    Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission support services to meet our ... customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency,...defense, civil, and commercial markets. Nightwing is seeking a Principal Integration and Test Engineer to serve… more
    Nightwing (01/09/26)
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  • Principal Software Engineer

    Leidos (Bethesda, MD)
    …**Leidos** has a new and exciting opportunity for a ** Principal Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... us and make a difference in National Security!** **Job Description** As a Software Engineer on this program, you will have the opportunity to build strong systems more
    Leidos (11/19/25)
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  • Principal Software Engineer

    Leidos (Bethesda, MD)
    …**Leidos** has a new and exciting opportunity for a ** Principal ** **Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business ... and make a difference in National Security!** **Job Description** A Software Engineer on this program provides Agile development and operations and maintenance for… more
    Leidos (11/07/25)
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  • System Engineer Principal Uscybercom…

    Sciolex Corporation (Chantilly, VA)
    …that surpasses the epitome of excellence. Our core services include systems engineering technical advice, technical support, and administrative assistance. From our ... Directorate (MID). Sciolex is seeking to fill an opening for a Systems Engineering and Technical Assistance (SETA) USCYBERCOM Outreach Representative. The customer… more
    Sciolex Corporation (10/14/25)
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