• Principal/Sr. Principal Systems

    Northrop Grumman (Patuxent River, MD)
    …smooth operation of multi-user computer systems , including coordination with network , software, and system engineers, PC desktop technicians, project ... hours and weekends as needed. Basic Qualifications for a Senior Principal System Admin: + Bachelor's degree...Windows AD, LDAP, VMWare, and knowledge of SAN storage systems . + Linux Operating System more
    Northrop Grumman (12/12/25)
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  • Contractor - Network Engineering

    SitusAMC (Annapolis, MD)
    …Change Management + Performs expert level diagnostics assessments on fixing or improving network communications for cooperate systems . + Assist Network ... in Network Operations and Design + Preferred experience with Windows operation systems + Preferred experience with Linux operating systems + Current… more
    SitusAMC (01/14/26)
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  • Lead System Security Engineer

    Guidehouse (Bethesda, MD)
    …response tests, and other compliance tasks. **3. Privacy** + Ensure all CIT systems comply with policies. + Focus on minimizing risks to PII/PHI/Sensitive data, ... (PIAs), and staying current with privacy laws and regulations. + Advise senior management on privacy and data protection best practices. **4. Process Maturity**… more
    Guidehouse (11/19/25)
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  • Network Engineer Principal

    SAIC (MD)
    **Description** SAIC is seeking a Senior Network Engineer to support the Department of the Air Force's (DAF) Advanced Battle Management System (ABMS) Digital ... This critical system will serve as the backbone for a network -centric approach to battle management, integrating capabilities across all Department of Defense… more
    SAIC (01/08/26)
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  • Lead Network Engineer - Remote US

    SitusAMC (Annapolis, MD)
    …as needed. + Performs expert level diagnostics assessments on fixing or improving network communications for cooperate systems . + Assist Systems Engineering ... operation systems preferred. + 3 or more years' experience with Linux operating systems preferred. + Current Certifications preferred, CCNA R&S, CCPN,… more
    SitusAMC (12/31/25)
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  • System Security Engineer

    Guidehouse (Bethesda, MD)
    …response tests, and other compliance tasks. **3. Privacy** + Ensure all CIT systems comply with policies. + Focus on minimizing risks to PII/PHI/Sensitive data, ... (PIAs), and staying current with privacy laws and regulations. + Advise senior management on privacy and data protection best practices. **4. Process Maturity**… more
    Guidehouse (11/19/25)
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  • Senior Mobile Software Engineer with Poly

    BigBear.ai (Annapolis Junction, MD)
    …of analysts, operators, dataflow experts, and mobile engineers to modernize systems while building scalable, automated solutions that operate across classified and ... and special access networks. + Modernize, maintain and support deployed systems . + Enhance observability, monitoring, and health reporting of deployed solutions.… more
    BigBear.ai (11/15/25)
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  • Senior Principal Vulnerability Researcher

    Nightwing (Annapolis Junction, MD)
    Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' ... intelligence community, defense, civil, and commercial markets. Use advanced systems to find zero-day (O-day) vulnerabilities. Responsible for analyzing, designing,… more
    Nightwing (12/06/25)
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  • Senior Associate - CyberOps & Assurance…

    American Express (Annapolis, MD)
    …+ Theoretical and practical security knowledge and investigation experience with Mac, Linux , and Windows operating systems , as well as cloud environments. ... of experience in information security + Solid foundation of network and application protocols and concepts (tcp, ip, dns,...ip, dns, http, dhcp, etc). + Experience with various network and/or host-based security tools to detect and respond… more
    American Express (01/15/26)
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  • R&D Systems Engineer

    Sealing Technologies (Columbia, MD)
    …to support pre-existing-built environments using existing documentation. + Basic knowledge of Linux , command-line usage, and system fundamentals. + Familiarity ... Preferred Qualifications: + Hands-on experience with hardware testing, lab equipment, or system building. + Exposure to network traffic analysis tools, lab… more
    Sealing Technologies (12/10/25)
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