• Senior Information System

    KBR (Chantilly, VA)
    Title: Senior Information System Security Officer (ISSO) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end ... critical information assets, ensuring compliance with relevant security policies, standards, and regulations. The Senior ...Develop, update, and/or review RMF documentation to include the System Security Plan (SSP), Security more
    KBR (12/24/25)
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  • Senior Information System

    ManTech (Chantilly, VA)
    **MANTECH** seek a motivated, career and customer-oriented ** Senior Information System Security Engineer** to join our team in **Washington, DC, ... 14 years. + Hold at least one of the following certifications: Certified Information Systems Security Professional (CISSP) (or Associate), CompTIA Advanced… more
    ManTech (01/01/26)
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  • Information System Security

    Amentum (Warrenton, VA)
    …Cyber, Security , & Intel space? If so, look no further. Amentum is seeking a Senior Information System Security Engineer (ISSE) to join our team of ... transformative change. **Responsibilities:** The duties and responsibilities of the Senior Information System Security...knowledge of security design best practices for information systems . throughout the system more
    Amentum (12/05/25)
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  • Information Systems Security

    BAE Systems (Sterling, VA)
    …may be available based on position level and/or job specifics. ** Information Systems Security Engineer ( Senior )- ISSE** **115935BR** EEO Career Site ... delivery. \#LI-KW2 **Required Education, Experience, & Skills** We are actively seeking Cyber Security Systems Engineers with a minimum of 6 years' experience.… more
    BAE Systems (11/21/25)
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  • Security Manager CPSO

    Noblis (Chantilly, VA)
    … apparatus that enables business operations while protecting our Nation's most trusted information . **The Senior Security Manager will have the following ... or urgent matters. + Oversees investigations of suspected insider threats, security incidents, and suspectedcompromises of classified information . + Provides… more
    Noblis (12/20/25)
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  • Systems Engineer Senior I

    ULTRA ELECTRONICS OCEAN SYSTEMS INC. (Chantilly, VA)
    …of the design, and finally through the integration and test events. The Systems Engineer is expected to provide system level trade-space assessments of ... Requirements Candidates must be eligible to obtain the relevant security clearance required for the role, due to the...integration and test events for combined hardware and software systems + Ability to document and specify system more
    ULTRA ELECTRONICS OCEAN SYSTEMS INC. (12/23/25)
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  • Senior Systems Engineer (potential…

    BAE Systems (Sterling, VA)
    …Other incentives may be available based on position level and/or job specifics. ** Senior Systems Engineer (potential travel)** **117888BR** EEO Career Site Equal ... integration and sustainment support for critical military platforms and systems . Intelligence & Security provides services and...Ansible is a must have + Experience working with System Automation + Experience working with Linux + Eclipse… more
    BAE Systems (10/31/25)
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  • Senior System Engineer

    KBR (Chantilly, VA)
    Title: Senior System Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape...position based upon contract award KBR is seeking a Senior Systems Engineer to join our team… more
    KBR (12/17/25)
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  • Senior Systems Enterprise Architect

    SAIC (Chantilly, VA)
    …real-time surveillance and activity-based intelligence information . As a Systems Enterprise Architect, you will provide system enterprise architecting, ... **Description** **JOB DESCRIPTION:** SAIC is seeking a Senior Systems Enterprise Architect with a...analysis, and system of systems engineering solutions that determine current and future national… more
    SAIC (12/06/25)
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  • Senior Platform Engineer

    BAE Systems (Sterling, VA)
    …Active Directory, SAML, OpenLDAP, OAuth 2.0, and/or OIDC + Familiarity with customer system security requirements and processes + Preparation and maintenance of ... **Job Description** At BAE Systems , we promote a strong, collaborative culture and...to lead the world in defense technologies and national security services. We offer flexible work environment to support… more
    BAE Systems (12/20/25)
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  • Systems Engineer - Research and Development…

    KBR (Chantilly, VA)
    security and shape the future of space defense. KBR is seeking a Senior Systems Engineer to support our customers in Chantilly, VA. The position requires ... Systems Engineer - Research and Development - Senior Belong. Connect. Grow. with KBR! KBR's National ...Senior Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology… more
    KBR (10/29/25)
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  • Senior SIGINT Systems Engineer

    KBR (Chantilly, VA)
    Title: Senior SIGINT Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape...the future of space defense. KBR is seeking a Senior SIGINT Systems Engineer to be part… more
    KBR (12/16/25)
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  • Senior Systems Engineer

    Leidos (Chantilly, VA)
    …Solutions Business Area, is currently seeking a highly motivated and experienced Senior Systems Engineer for the Chinook Program. The selected candidate ... + Expert Systems Engineering Professional (ESEP), INCOSE Certified Systems Engineering Professional (ESEP), CISSP, Security + certification, or similar… more
    Leidos (11/22/25)
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  • Senior SIGINT Ground Systems Expert

    KBR (Chantilly, VA)
    Title: Senior SIGINT Ground Systems Expert Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... + Impactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space… more
    KBR (11/07/25)
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  • Senior Cyber Forensics and Malware Analyst

    BAE Systems (Sterling, VA)
    …Team as a Senior Cyber Forensics and Malware Analyst** At BAE Systems , we're passionate about harnessing the power of technology to create innovative solutions ... you will play a critical role in ensuring the security and integrity of our systems and...forensic data acquisitions, malware reverse engineering, and analysis of system anomalies to identify potential security threats.… more
    BAE Systems (10/30/25)
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  • Systems Engineer - Senior

    Parsons Corporation (Centreville, VA)
    …possible. **Job Description:** Our Special Programs and Systems team is hiring a Senior Systems Engineer with a passion for mission excellence in our High ... status in a small team environment to enable operational success of deployed systems . This role includes system design, configuration, and debugging of Linux… more
    Parsons Corporation (12/06/25)
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  • Senior SIGINT Systems Engineer

    Solvarus (Chantilly, VA)
    …software applications key to successful enterprise mission objectives. We are seeking a senior SIGINT systems engineer to provide Systems Engineering ... closure in the remote sensing domain; supporting enterprise and system level requirements for future systems ; independent...Qualifications: + Current and Active TS/SCI with CI Poly Security Clearance. + Bachelor's degree in Systems more
    Solvarus (11/02/25)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented ** Senior Systems Administrator** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... and ordering hardware/software to meet customer requirements + Experience with client system security to include scans, patching, audit log review, and… more
    ManTech (12/19/25)
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  • Senior DevSecOps Engineer

    BAE Systems (Sterling, VA)
    …plans for both security and functional requirements + Familiarity with customer system security requirements and processes + Preparation and maintenance of ... **Job Description** We are looking for a Senior DevSecOps Engineer to join our visible technical...join our visible technical program driving the Model Based Systems Engineering (MBSE) cloud platform that supports collection, management… more
    BAE Systems (10/31/25)
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  • Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled ** Senior Systems Administrator** to join our sustainment team in **Chantilly, VA.** In this role, you will support a ... initiatives, including PKI, LDAP, and related authentication technologies + Maintain system documentation, configuration management, and security baselines in… more
    ManTech (12/13/25)
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