• Information Systems Security Engineer (Senior)-…

    BAE Systems (Sterling, VA)
    …to improve our future and protect our freedom. We are looking for an ISSE to join our technology-based program supporting a key government customer. This program ... more discipline, but can be waived if previous direct ISSE support to this customer s agency. Specific skills...a basic understand needs to be conveyed by the ISSE when speaking with others or in writing the… more
    BAE Systems (11/21/25)
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  • Information Systems Security Engineer…

    Nightwing (Sterling, VA)
    …and reward system, and performance-based bonuses **Information Systems Security Engineer ( ISSE ) (Open)** Nightwing seeks a cybersecurity professional to serve as an ... ISSE in Sterling, VA. The ISSE will help execute the cybersecurity program as various USG doctrines require, including the ICD 503 and its supplements. The… more
    Nightwing (11/25/25)
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  • ISSE

    System One (Reston, VA)
    ISSE TS/SCI CI Poly required Reston, VA or...our dynamic team as an Information System Security Engineer ( ISSE ) and make a direct impact on our customer's ... mission. In this role, you will design, implement, and maintain cutting-edge cybersecurity solutions to ensure the availability and security of critical defense systems. You'll be a vital part of the Risk Management Framework (RMF) lifecycle, contributing to… more
    System One (12/26/25)
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  • Information System Security Engineer ( ISSE

    Assertive Professionals (Chantilly, VA)
    Information System Security Engineer ( ISSE ) About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small ... Pipeline Description Assertive Professionalsis seeking anInformation System Security Engineer ( ISSE ) with Poygraph supporting ourNational Security Customer in Chantilly,… more
    Assertive Professionals (10/09/25)
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  • ISSE (Hybrid)

    Huntington Ingalls Industries (Columbia, MD)
    …Job Description Enlighten is looking for an Information Systems Security Engineer ( ISSE ). Candidate will perform system or network designs that encompass multiple ... clearance is required; US Citizenship required. + 9+ years of experience as an ISSE with large multi-tiered programs and Bachelors in related field; OR 7 years… more
    Huntington Ingalls Industries (11/06/25)
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  • ISSE Senior - with TS/SCI Poly

    Amentum (Columbia, MD)
    …Security, & Intel space? If so, look no further. Amentum is seeking a **Senior ISSE ** to join our team of passionate individuals in **Columbia, MD** . In this role ... a direct impact on the Nation's security and intelligence mission. As the Senior ISSE on a dynamic team, you will perform technical security assessments of computing… more
    Amentum (10/14/25)
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  • Information Systems Security Engineer…

    General Dynamics Information Technology (Chantilly, VA)
    …+ years of related experience **US Citizenship Required:** Yes **Job Description:** The ISSE will support our work on assessment and authorization (A&A) of critical ... systems, detection of adversary behavior, and improving the defensive posture of our customer's information systems. The successful candidate will use various tools and methodologies to evaluate the state of systems and applications for vulnerabilities, verify… more
    General Dynamics Information Technology (01/02/26)
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  • Information Systems Security Engineer Level 1…

    ARSIEM (Columbia, MD)
    …A minimum of 7 years of experience as an Information System Security Engineer ( ISSE ) on programs and contracts of similar scope, type, and complexity is required. + ... Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university is required. + Note: Four (4) years of additional lSSE experience may be substituted for a… more
    ARSIEM (12/11/25)
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  • Information Systems Security Engineer Level 3…

    ARSIEM (Columbia, MD)
    …for two (2) years of experience. + Four (4) years of additional ISSE experience may be substituted for a Bachelor's degree. + Experience supporting security ... authorization activities in compliance with: + NSA/CSS Information System Certification and Accreditation Process (NISCAP) + DoD Risk Management Framework (RMF) + NIST Risk Management Framework (RMF) + NSA/CSS business processes for security engineering.… more
    ARSIEM (11/01/25)
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  • Information Systems Security Engineer

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking an experienced Information Systems Security Engineer ( ISSE ) for a position located in Chantilly, VA. The successful candidate will ... DUTIES:** Key duties/responsibilities include, but are not limited to: + Provide ISSE expertise for transitioning NRO or DoD systems authorization to Intelligence… more
    SAIC (11/06/25)
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  • Information Systems Security Engineer III

    Amentum (Columbia, MD)
    …to resolve security requirements **Requirements:** + Twenty (20) years experience as an ISSE on programs and contracts of similar scope, type, and complexity to ... of a Bachelor's degree, four (4) additional years of ISSE experience may be substituted. **Minimum Years of Experience:**...of Experience:** + Twenty (20) years experience as an ISSE on programs and contracts of similar scope, type,… more
    Amentum (11/12/25)
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  • Information Systems Security Engineer

    Nightwing (Sterling, VA)
    …markets. Nightwing is seeking a highly skilled and motivated Information Systems Security Engineer ( ISSE ) to join our DevSecOps team in Herndon. The ISSE will ... work closely with cross-functional teams to ensure systems comply with security policies, standards, and best practices. The position requires hands-on experience implementing security compliance, cloud automation, continuous integration/continuous deployment… more
    Nightwing (12/30/25)
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  • Program Security Engineer

    SAIC (Chantilly, VA)
    …Contractor Program Security Officers (CPSO) and Information System Security Engineers ( ISSE ). **Qualifications** + Must possess an active TS/SCI clearance with ... with limited direct supervision. **Desired Qualifications:** + Experience working in an ISSM or ISSE role. + Experience working in a PSO role for a Program or… more
    SAIC (12/23/25)
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  • Military Fellowship Program: Systems Security…

    Sierra Nevada Company, LLC (Hagerstown, MD)
    …**Qualifications We Prefer:** + ISSM CAP, CISSP, or CISM Certification + ISSE CAP, CISSP-ISSEP Certification + ISSO Security+, CISA, or CASP+ Certification + ... MCSE, Linux, and/or CCNP Security Certification At Sierra Nevada Company, LLC (SNC) we deliver customer-focused technology and best-of-breed integrations in the aerospace and defense sectors. SNC has been honored as one of the most innovative US companies in… more
    Sierra Nevada Company, LLC (12/05/25)
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  • Senior Information System Security Engineer

    General Dynamics Information Technology (Reston, VA)
    …problem solving, team player + Preferred Skills: Experience as an ISSO, ISSM, ISSE , or Security Controls Assessor. Experience with Special Access Programs (SAPs) and ... Intelligence Community. + Location: On Customer Site + US Citizenship Required GDIT IS YOUR PLACE: + 401K with company match + Comprehensive health and wellness packages + Internal mobility team dedicated to helping you own your career + Professional growth… more
    General Dynamics Information Technology (11/21/25)
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  • National Security Sector Referrals

    Leidos (Reston, VA)
    …Engineer + Systems Administration - Linux + Information Security Systems Engineer/Officer ( ISSE /ISSO) + Data Scientist + Systems Engineer + TechSIGINT Analyst + ... Oracle Database Administration (DBA) + And many more technical positions **Basic Qualifications:** + Experience Preferred (and commonly required): Bachelor's degree, relevant experience or 4 years of experience in lieu of a degree + Clearance Preferred (and… more
    Leidos (10/18/25)
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  • Information Security Systems Engineer - Expert

    BAE Systems (Herndon, VA)
    …Experience, & Skills** We are actively seeking an Information Systems Security Engineer ( ISSE ) with a minimum of 11 years' experience with a Bachelor's Degree. Other ... degrees will be considered with the year's experience adjusted to accommodate. We are looking for a candidate with specific skills that may include the following: + Implementation and validation of security controls that support the Risk Management Framework… more
    BAE Systems (12/10/25)
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  • Cyber Security Analyst

    ManTech (Herndon, VA)
    …and information security protocols to drive tasking and ensure compliance + ISSE /ISSO tasking in support of documenting and navigating the customer's accreditation ... process for ATO **Minimum Qualifications:** + Bachelor's degree in a related field OR additional equivalent work experience + 5+ years of experience relevant to this position + Experience with Software Development Lifecycle, application security, Cloud… more
    ManTech (11/22/25)
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  • SAP NS2 Sr. Java Developer - Active TS SCI…

    SAP (Herndon, VA)
    …Have + Experience with government-sponsored products like MLDBR, X-Arbitor, or legacy ISSE Guard. + Familiarity with VMware, Azure, or sandboxed lab environments ... mimicking secured network domains. + Prior experience working in highly regulated, security-sensitive environments (eg, NS2, DoD, or similar). Soft Skills + Excellent written and verbal communication skills. + Highly organized with strong attention to detail.… more
    SAP (11/13/25)
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  • System Administrator

    CACI International (Chantilly, VA)
    …diagrams, standard operating procedures, and system documentation. + Coordination with customer ISSE to ensure security accreditation of all project IT systems. This ... includes writing documentation and plans to successfully navigate ICD 503 and customer's unique security requirements. + Troubleshoots and resolves hardware, software, and communications problems. Required qualifications: + **TS/SCI with Polygraph** +… more
    CACI International (12/29/25)
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