• 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 ... 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

    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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  • Principal /Sr. Principal

    Northrop Grumman (Fairfax, VA)
    Cyber Systems Engineer level. **Basic Qualifications for a Principal Cyber Systems Engineer :** + A security clearance is not required at the ... to individuals and groups. **Basic Qualifications for a Senior Principal Cyber Systems Engineer :** + A security clearance is not required at the time… more
    Northrop Grumman (11/21/25)
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  • Senior Principal Cyber

    Nightwing (Sterling, VA)
    …challenging, meaningful work that is vital to our national security , apply today! ** Principal Cyber Engineer ** Cyber Offense and Defense Experts ... customers in the intelligence community, defense, civil, and commercial markets. **Sr. Principal Cyber Engineer ** Nightwing provides technically advanced… more
    Nightwing (01/09/26)
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  • Sr. Principal Cyber Software…

    Northrop Grumman (Chantilly, VA)
    …work of your career. **Northrop Grumman Mission Systems** is seeking an experienced **Senior Principal Cyber Software Engineer ** to join our team supporting ... Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to… more
    Northrop Grumman (10/21/25)
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  • Principal Endpoint Security Systems…

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

    Saliense Consulting (Arlington, VA)
    …and capacity of a VLAN/LAN/WAN environment + Experience in installation and testing of security patches and cyber security products. + Hands-on experience ... package. Saliense is now hiring a Senior Technical Consultant ( Principal Network Systems Engineer ) to join our...+ Provides for the management, testing, and installation of security patches and cyber security more
    Saliense Consulting (01/06/26)
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  • Elastic Principal Software Engineer

    BCMC (Dulles, VA)
    …Administrator (CKA), or Certified Kubernetes Security Specialist (CKS) DOM-TO9-3495 Software Engineer - Principal I - ESW05 Our Company Overview Business ... BCMC provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission...intelligence community, defense, civil, and commercial markets. The Elastic Engineer will be a part of a team of… more
    BCMC (01/06/26)
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  • Sr Principal Cybersecurity Analyst/Network…

    Northrop Grumman (Chantilly, VA)
    …join our diverse team of engineers, system administrators, and operators as a Sr. Principal Cyber Systems Engineer professional in Chantilly, VA. The ... including 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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  • 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 Infrastructure Engineer

    Nightwing (Sterling, VA)
    …in the intelligence community, defense, civil, and commercial markets. Nightwing is seeking a Principal Integration and Test Engineer to serve in a key role ... Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission support services to meet our customers'… more
    Nightwing (01/09/26)
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  • Principal Elasticsearch Systems…

    Leidos (Bethesda, MD)
    …has a new and exciting opportunity for a ** Principal ** **Elasticsearch Systems Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics ... much more. **Join us and make a difference in National Security !** **Job Summary** The Principal Elasticsearch Systems Engineer role provides support across… more
    Leidos (10/30/25)
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  • Principal Software Engineer

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

    Leidos (Bethesda, MD)
    …opportunity for a ** Principal ** **Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area (CABA)** . Our talented ... more. **Join us and make a difference in National Security !** **Job Description** A Software Engineer on...in National Security !** **Job Description** A Software Engineer on this program provides Agile development and operations… more
    Leidos (11/07/25)
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  • Principal Test Engineer

    Leidos (Bethesda, MD)
    …exciting opportunity for a Principal Test Engineer in our **National Security Sector's (NSS) Cyber & Analytics Business Area (CABA)** . Our talented team ... much more. **Join us and make a difference in National Security !** **Job Summary:** As a Test Engineer on this program, you will have the opportunity to perform… more
    Leidos (10/31/25)
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  • Senior Principal DevOps Lead…

    RTX Corporation (Fulton, MD)
    …will lead the DevOps effort across a team of engineers, IT professionals, and cyber security SMEs to design, implement, and maintain the DevSecOps platform for ... ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as...Aerospace is currently seeking a self-motivated and talented **Senior Principal ** **DevOps Lead Engineer ** who is seeking… more
    RTX Corporation (10/17/25)
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  • Principal Test Engineer

    Leidos (Bethesda, MD)
    …exciting opportunity for a Principal Test Engineer in our **National Security Sector's (NSS) Cyber & Analytics Business Area (CABA)** . Our talented team ... much more. **Join us and make a difference in National Security !** **Job Description** As a Test Engineer on this program, you will have the opportunity to… more
    Leidos (12/11/25)
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  • Full Stack Developer, Software 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, vulnerability research, ubiquitous technical… more
    Nightwing (01/07/26)
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  • Principal Network Engineer

    Leidos (Mclean, VA)
    …opportunity for a ** Principal Network Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area (CABA)** . Our talented ... team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical...more. **Join us and make a difference in National Security !** **Job Description:** The individual in this role maintains… more
    Leidos (01/09/26)
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