• Software / Systems Tester

    Leidos (Manassas, VA)
    …directly redefines naval capabilities. That's the Leidos experience. Position Overview: As a software /system tester , you will work with project management and ... auto testing, unit testing, integration testing, functional testing and bug-tracking systems . * Familiarity in software development lifecycle management (SDLC).… more
    Leidos (07/03/25)
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  • Senior Specialist, Systems Engineering…

    L3Harris (Springfield, VA)
    …cyber domains in the interest of national security. Job Title: Senior Specialist, Systems Engineer - User Acceptance Tester (Active TS/SCI w/CI Poly Required)Job ... Technologies currently has an opening for a Senior Specialist, User Acceptance Tester with expertise in Test and Integration for an important National Security… more
    L3Harris (05/29/25)
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  • Business Systems Analyst/ Tester

    Koniag Government Services (Chantilly, VA)
    Business Systems Analyst/ Tester (REMOTE) Virtual Req #559 Wednesday, June 11, 2025 **Arlluk Technology Solutions,** a Koniag Government Services company, is ... seeking a Business Analyst/ Tester with a Secret security clearance to support **ATS**...with Public Law 88-352_** **Other details** + Job Family Software and Systems Development + Job Function… more
    Koniag Government Services (06/12/25)
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  • Penetration Tester

    CACI International (Chantilly, VA)
    Penetration Tester Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of ... * **The Opportunity:** CACI is seeking a talented Penetration Tester to join our team in Herndon, VA. If...creative ways to break into a range of customer systems and illustrate to stakeholders what could happen if… more
    CACI International (06/21/25)
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  • Sr. Penetration Tester

    CACI International (Chantilly, VA)
    Sr. Penetration Tester Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of ... * **The Opportunity:** CACI is seeking a talented Penetration Tester to join our team in Herndon, VA. If...creative ways to break into a range of customer systems and illustrate to stakeholders what could happen if… more
    CACI International (06/21/25)
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  • DAI Testing Specialist/ Tester

    CGI Technologies and Solutions, Inc. (Fort Belvoir, VA)
    **DAI Testing Specialist/ Tester ** **Category:** Testing/Quality Assurance **Main location:** United States, Virginia, Fort Belvoir **Position ID:** J0525-1472 ... seeking a Testing Specialist to join our team, bringing experience in computer software development and a strong background in software testing, including… more
    CGI Technologies and Solutions, Inc. (05/22/25)
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  • Software Engineer TS/SCI Poly

    Leidos (Alexandria, VA)
    **Description** Leidos has an exciting opportunity for a Software Engineer! *Must have an active TS/SCI Polygraph up front. No exceptions.* You will perform ... software development lifecycle (SDLC) activities as both an individual...management tools. Must have experience with technologies underlying cryptographic systems (symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization,… more
    Leidos (06/28/25)
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  • Sr. Software Engineer TS/SCI Polygraph

    Leidos (Alexandria, VA)
    **Description** Leidos has an exciting opportunity for a Sr. Software Engineer! *Must have an active TS/SCI Polygraph up front. No exceptions.* You will perform ... software development lifecycle (SDLC) activities as both an individual...tools. + Must have experience with technologies underlying cryptographic systems (symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization,… more
    Leidos (06/27/25)
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  • Software Engineer

    Leidos (Alexandria, VA)
    **Description** **Leidos** has a new and exciting opportunity for a Software Engineer in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... forefront in Security Engineering, Computer Network Operations (CNO), Mission Software , Analytical Methods and Modeling, Signals Intelligence (SIGINT), and… more
    Leidos (06/20/25)
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  • Sr. Software Engineer TS/SCI Polygraph $25k…

    Leidos (Alexandria, VA)
    …that incorporate new capabilities into various components of the existing systems ; provide technical leadership for software development activities as ... **Description** Leidos has an exciting opportunity for a Senior Software Engineer to join a high performing agile team...XSLT + Experience developing on Windows, and/or Linux operating systems . + Experience with one or more of the… more
    Leidos (04/18/25)
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  • Security Software Engineer - Red Team…

    Imagine One Technology & Management (Dahlgren, VA)
    …tel and Rational ClearCase for software configuration management. + Recommend software modifications to systems to mitigate known vulnerabilities. + Operate ... Technology & Management, Ltd. is seeking one (1) Security Software Engineer. This position is contingent upon award of...and administrate computer systems running HP-UX, UNIX, Solaris, Linux and Microsoft Windows.… more
    Imagine One Technology & Management (06/25/25)
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  • Software Engineer TS/SCI Poly

    Leidos (Alexandria, VA)
    **Description** Leidos is looking for a Software Engineer to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a ... continuing to support an on-going mission and operational system. **Job Summary** The Software Engineer will perform software development activities as a member… more
    Leidos (06/17/25)
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  • Software Engineer TS/SCI Poly

    Leidos (Alexandria, VA)
    **Description** **Leidos** has a new and exciting opportunity for a ** Software Engineer** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... forefront in Security Engineering, Computer Network Operations (CNO), Mission Software , Analytical Methods and Modeling, Signals Intelligence (SIGINT), and… more
    Leidos (05/28/25)
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  • Software Developer

    General Dynamics Information Technology (Fort Belvoir, VA)
    …None **Job Family:** Software Development **Skills:** National Security,Red Teaming, Software Systems **Experience:** 5 + years of related experience ... Yes **Job Description:** Deliver simple solutions to complex problems as a Software Developer, Senior at GDIT. Here, you'll tailor cutting-edge solutions to the… more
    General Dynamics Information Technology (06/03/25)
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  • Cyber Security Specialist - Multiple Levels

    Science Systems and Applications, Inc. (Lanham, MD)
    …basic security principles. + Experience with basic tools like firewalls, antivirus software , and monitoring systems . + Certifications: + CompTIA Security+ ... Science Systems and Applications, Inc. (SSAI) is seeking candidates...threat detection and response) Specialized Cybersecurity Roles + Penetration Tester : + Offensive Security Certified Professional (OSCP) (Hands-on penetration… more
    Science Systems and Applications, Inc. (07/02/25)
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  • United States Postal Service (USPS) Incumbent…

    General Dynamics Information Technology (Fairfax, VA)
    …PowerApps Developer + SAP Developer + Software Automated Tester + Software Developer + SQL Developer + Systems Analysis + Incident Management Systems ... + Business Analysts + Business Process Analyst + Business Systems Analysts + Architects + Cloud Architect + Compute...Program Manager + Project Manager + Quality Assurance + Software QA Tester + Real Estate and… more
    General Dynamics Information Technology (07/02/25)
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  • Network Engineer 3

    M. C. Dean (Chantilly, VA)
    …as backup for team members during paid time off. + Perform hardware / software upgrades and replacements on existing systems **System Analysis and Reporting:** + ... hand tools + Experience using testing, calibration, or industry-specific tools and software (spectrum analyzer, cable tester , Alignment tool) Tools/ Software more
    M. C. Dean (05/29/25)
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  • Security Architect - Healthcare/Interoperability

    General Dynamics Information Technology (Fairfax, VA)
    …that millions of healthcare professionals depend on, every day. Our work depends on a software tester joining our team to support our software development ... Federal Risk and Authorization Management Program (FedRAMP),NIST Standards,Privacy Impact Assessments, Systems of Records Notice (SORN) **Experience:** 5 + years of… more
    General Dynamics Information Technology (07/05/25)
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