• Applied Research Solutions (Bedford, MA)
    **Description** ARS is seeking a Senior Information Systems Security Engineer (ISSE) candidate located at Hanscom, AFB. Applied Research Solutions (ARS) is ... and defend against unauthorized access to systems, networks, and data . + Develop, execute, and track the performance of.... + Develop, execute, and track the performance of security measures to protect information and network infrastructure and… more
    DirectEmployers Association (01/06/26)
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  • Applied Research Solutions (Dayton, OH)
    **Description** ARS is currently looking for an Information System Security Engineer (ISSE). Our desire is to build a team of highly qualified professionals that ... , Azure Automation, STIG/SCAP, and other enterprise capabilities. The Information Systems Security Engineer (ISSE) shall perform, or review, technical … more
    DirectEmployers Association (11/21/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …be more with us! Job Summary: We are seeking a skilled Systems Administrator/Network Engineer to join our mission-driven team. This position offers a broad scope of ... Network Administration & Maintenance: + Monitor network performance, availability, and security . + Perform routine maintenance, updates, and patches for network… more
    DirectEmployers Association (11/25/25)
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  • AeroVironment (Centreville, VA)
    …+ Experience with Enterprise Mission Assurance Support Service (eMASS) + Experience with Security relevant tools: eg SCAP, STIG, Nessus, ACAS + Working ... **Worker Type** Regular **Job Description** **Summary** The Information Systems Security Manager (ISSM) provides information systems security support for DoD and… more
    DirectEmployers Association (12/23/25)
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  • ACAS / Data Security

    General Dynamics Information Technology (Fort Huachuca, AZ)
    …on-site support at our Fort Huachuca facility.** **MEANINGFUL WORK AND PERSONAL IMPACT** **As an ACAS / Data Security Engineer , the work you'll do at GDIT ... (Required)** **Bring your cyber expertise and drive for innovation to GDIT. The ACAS / Data Security Engineer must have:** **Education:** **Bachelor of… more
    General Dynamics Information Technology (12/27/25)
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  • ACAS Engineer - Active Top Secret…

    ENS Solutions (College Park, MD)
    …to enable secure and reliable operations of enterprise computer systems. Engineer , design, develop, and implement enterprise network cyber defense capabilities to ... of cyber defense capabilities, including web content filters, email security capabilities, Intrusion Detection System, Intrusion Prevention System, Host Based… more
    ENS Solutions (12/27/25)
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  • ISSO/Systems Security Engineer

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    **Overview** **ISSO/SYSTEMS SECURITY ENGINEER (RDTE)** Bowhead is seeking a skilled full-time ISSO/Systems Security Engineer to join our team in ... confidentiality, integrity, availability, authentication, non-repudiation).Tenable Assured Compliance Assessment Solution ( ACAS ) + Trellix Endpoint Security System (ESS),… more
    UIC Government Services and the Bowhead Family of Companies (12/18/25)
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  • Security Engineer (RMF)

    CACI International (Frederick, MD)
    Security Engineer (RMF) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... * * **The Opportunity:** We are seeking a skilled Security Engineer (RMF) to support the Defense...or intelligence environments. + Technical Expertise with TCP/IP, Windows/Linux security , Solarwinds, Splunk, STIG Viewer, ACAS , Nessus… more
    CACI International (12/09/25)
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  • Information Systems Security

    Huntington Ingalls Industries (Honolulu, HI)
    …Who We Are HII-Mission Technologies is seeking a Information Systems Security Engineer at our Honolulu, Hawaii location. The Information ... to support integrated ISR operations and accelerated decision-making. With data fusion and mission management capabilities for the Department...Systems Security Engineer (ISSE) is responsible for the… more
    Huntington Ingalls Industries (11/18/25)
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  • Network Defense and Firewall Security

    Systems Technology Forum (San Diego, CA)
    …(DoD), and other federal agencies. Job Summary The Network Defense and Firewall Security Engineer is responsible for safeguarding enterprise and mission networks ... Cisco ASA, Palo Alto, Fortinet, Snort, Suricata). * Perform vulnerability scanning, security -event correlation, and analysis using ACAS , HBSS, and SIEM tools.… more
    Systems Technology Forum (11/21/25)
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  • Senior Specialist, Info Security Systems…

    L3Harris (Broomfield, CO)
    …the interest of national security . Job Title: Senior Specialist, Information Security Systems Engineer Job Code: 31061 Job Location: Boulder/North Denver, CO ... Experience in the implementation and use of cybersecurity tools ( ACAS , SCAP, etc.). + Support security engineering...test, configuration management and maintenance of information systems and data . + Assist program security in the… more
    L3Harris (11/12/25)
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  • Information System Security Engineer

    CAE USA INC (Arlington, TX)
    …sanitization plan. + Facilitate Software/Hardware Approvals. + Assist in Technical Security Management: Firewalls, Data Protection Controls, + Patching, ... Encryption, Certificates, vulnerability scanning ( ACAS /SCAP/E-STIG). + Continuous Monitoring . Patch/STIG . Annual ATO... SECURITY RESPONSIBILITIES: Must comply with all company security and data protection / usage policies… more
    CAE USA INC (12/17/25)
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  • Information Systems Security

    Amentum (Fort Meade, MD)
    …space? If so, look no further. Amentum is seeking a **Principal Information Systems Security Engineer ** to join our team of passionate individuals in **Fort ... of new products and processes. **Responsibilities:** The **Senior Information Systems Security Engineer (ISSE)** shall deliver and lead threat-informed… more
    Amentum (10/23/25)
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  • Cyber Security / Info Assurance…

    Exeter Government Services, LLC (Fort Knox, KY)
    …as Fortify Security Control Analyzer (SCA), Assured Compliance Assessment Solution ( ACAS ), HP ArcSight, and Enterprise Security Management (ESM). . Ensure ... Certificates of Networthiness (CoN) for new or upgraded software . Write/develop System Security Plans (SSP) and Tenant Security Plans (TSP) . Whitelists,… more
    Exeter Government Services, LLC (12/29/25)
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  • Senior Information System Security

    General Dynamics Information Technology (Reston, VA)
    …for enterprise information systems and network architectures as an Information System Security Engineer at GDIT. Here, you'll tailor cutting-edge solutions to ... mission critical requirements. Our work depends on Information Systems Security Engineers joining our team to protect data...a wide range of devices. HOW AN INFORMATION SYSTEM SECURITY ENGINEER WILL MAKE AN IMPACT +… more
    General Dynamics Information Technology (11/21/25)
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  • Information System Security Engineer

    Amentum (Warrenton, VA)
    …space? If so, look no further. Amentum is seeking a Senior Information System Security Engineer (ISSE) to join our team of passionate individuals in Warrenton, ... change. **Responsibilities:** The duties and responsibilities of the Senior Information System Security Engineer (ISSE) include, but are not limited to, the… more
    Amentum (12/05/25)
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  • Cloud Information Systems Security

    CGI Technologies and Solutions, Inc. (Washington, DC)
    **Cloud Information Systems Security Engineer (ISSE) - Sr** **Category:** Cyber Security **Main location:** United States, District of Columbia, Washington ... are required. CGI Federal is currently looking for a Senior-Level Cloud Information Systems Security Engineer with active Top Secret clearance to support a large… more
    CGI Technologies and Solutions, Inc. (12/24/25)
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  • Cloud Security Engineer

    Leidos (VA)
    …to patient safety, this opportunity is your next career move. The **Cloud Security Engineer ** will design, implement, and maintain security solutions ... as securing IVR systems like Amazon Connect. The Cloud Security Engineer will collaborate with cross-functional teams...concepts like TLS, PKI, x509, along with tools like ACAS , OWASP, SonarQube. + Experience with security more
    Leidos (12/30/25)
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  • Lead, Information Security Systems…

    L3Harris (Clifton, NJ)
    …domains in the interest of national security . Job Title: Anti-Tamper System Security Engineer (Secret Security Clearance) Job Code: 32319 Job Location: ... 5200.39 for the identification and protection of CPI. + Engineer trustworthy and secure systems in accordance with NIST...testing, configuration management, and maintenance of information systems and data . + Assist program security in the… more
    L3Harris (12/20/25)
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  • ABAD Cross Domain Solutions (CDS) Engineer

    Parsons Corporation (Centreville, VA)
    …for Department of Defense (DoD) information-sharing environments operating across multiple security domains. This engineer ensures all CDS architecture, ... **CDS Security Requirements Guides (SRG)** + **Cross Domain Solution Security Requirements (CDSSR)** + Engineering trusted data filters, guards, sanitizers,… more
    Parsons Corporation (12/19/25)
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