• 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 Cyber Engineer

    Nightwing (Sterling, VA)
    …challenging, meaningful work that is vital to our national security , apply today! ** Principal Cyber Engineer ** Cyber Offense and Defense Experts ... to customers in the intelligence community, defense, civil, and commercial markets. ** Principal Cyber Engineer ** Nightwing provides technically advanced… more
    Nightwing (12/12/25)
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  • Principal /Sr. Principal

    Northrop Grumman (Chantilly, VA)
    …to management in a timely manner and make recommendations **Basic Qualifications for a Principal Cyber Software Test Engineer :** + **Candidate must currently ... and management to prioritize bugs until resolution **Basic Qualifications for a Sr. Principal Cyber Software Test Engineer :** + **Clearance: Candidate must… more
    Northrop Grumman (11/01/25)
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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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  • 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 (10/02/25)
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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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  • 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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  • 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 (10/10/25)
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  • System Engineer Principal Uscybercom…

    Sciolex Corporation (Chantilly, VA)
    …to weekly meetings at NSA Overhead Program Division (OPD), coordinating offensive cyber opportunities for USCYBERCOM and the NRO. Make a difference in securing ... our nation's security through quality Outreach support of NRO's tools and...on current and developmental NRO capabilities that can enable cyber ops. + Embedded within the NSA NITRO, the… more
    Sciolex Corporation (10/14/25)
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  • Principal DevOps Engineer

    Leidos (Bethesda, MD)
    …new and exciting opportunity for a **PrincipalDevOps Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area (CABA)** . Our ... more. **Join us and make a difference in National Security !** **Job Summary** This PrincipalDevOps Engineer role...in National Security !** **Job Summary** This PrincipalDevOps Engineer role provides mission critical system support to our… more
    Leidos (12/04/25)
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  • Digital Signal Processing Engineer

    Parsons Corporation (Chantilly, VA)
    …75 years of experience, Parsons is uniquely qualified to deliver cyber /converged security , technology-based intellectual property, and other innovative services ... Parsons Company, is seeking qualified candidates to fill a Digital Signal Processing Engineer (DSP) positions at our headquarters in Chantilly, VA. We are currently… more
    Parsons Corporation (10/21/25)
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  • Cloud Security Engineer SME - TS/SCI…

    General Dynamics Information Technology (Herndon, VA)
    …NEED TO SUCCEED:** + Education: Technical Training, Certification(s) and/or Degree ( Cyber Security , Computer Science, Information Technology, etc.) + Required ... to the client's Cyber and Cloud technology program(s). **HOW A CLOUD ENGINEER , SME WILL MAKE AN IMPACT** You will consult with customers/clients regarding the… more
    General Dynamics Information Technology (10/13/25)
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  • Information Systems Security

    TekSynap (Chantilly, VA)
    …Review and update approved ATO as required or requested in conjunction of auditors, cyber security & Information System Security Engineers. + Coordinates ... programs security , etc.), program personnel, and Government security representatives. + Serve as a principal ...team supporting the Space Development Agency. The Information Systems Security Engineer will act as liaison to… more
    TekSynap (12/06/25)
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  • Network Engineer Senior

    General Dynamics Information Technology (Germantown, MD)
    …years of related experience **US Citizenship Required:** Yes **Job Description:** NETWORK ENGINEER SR PRINCIPAL Transform technology into opportunity as a ... Network Engineer Sr Principal at GDIT. Shape what's next for mission-critical government...of related experience * Technical skills: Juniper Networks * Security clearance level: Ability to obtain clearance * US… more
    General Dynamics Information Technology (11/25/25)
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  • Field Engineer

    Parsons Corporation (Sterling, VA)
    …of systems, supporting installation, maintenance, and field-related sustainment work worldwide. Field Engineer , Associate Principal : BS 10-12, MS 8-10, Phd 5-7 ... 75 years of experience, Parsons is uniquely qualified to deliver cyber /converged security , technology-based intellectual property, and other innovative services… more
    Parsons Corporation (12/23/25)
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