• Senior Linux Engineer

    CACI International (Chantilly, VA)
    Senior Linux Engineer Job...Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel ... is seeking a highly skilled and experienced Tier 3 Linux Engineer to join our team in...tools, and best practices. **Qualifications:** _Required:_ * An Active TS /SCI Clearance with Polygraph. * Security+ or DoD 8570… more
    CACI International (11/01/25)
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  • Senior Linux Engineer

    General Dynamics Information Technology (Chantilly, VA)
    …RQ211516 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... Family:** IT Infrastructure and Operations **Skills:** Linux Environments,Red Hat Enterprise Linux (RHEL),Systems Engineering **Experience:** 10 + years of… more
    General Dynamics Information Technology (12/14/25)
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  • Senior Computer Network Defense (CND)…

    V2X (Springfield, VA)
    …and professionalism. We are hiring for a Senior Computer Network Defense (CND) Engineer with an active TS /SCI clearance - with the ability to obtain and ... location. Our positions are required to be onsite. The Senior Computer Network Defense (CND) Engineer tests,...Security Clearance Requirements: + The position requires an active Top Secret /SCI clearance with the ability to… more
    V2X (12/12/25)
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  • Principal Systems Engineer - active…

    V2X (Springfield, VA)
    …location. The position is required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to obtain and maintain a ... responsibility, and professionalism. We are hiring a Principal Systems Engineer - active TS /SCI clearance to support...Counterintelligence (CI) Polygraph. The Senior -level Principal Systems Engineer shall lead a… more
    V2X (11/25/25)
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  • OCONUS Field Engineer - TS /SCI…

    Leidos (Chantilly, VA)
    **Description** We are seeking mid to senior field engineers to join our international team in an exciting OCONUS location. The team is made-up of highly technical ... and motivated individuals. The engineer for this role will troubleshoot complex problems, as...candidates for consideration, must possess an active and in-scope TS /SCI Polygraph.** **Basic Qualifications:** + Bachelor's degree and 8+… more
    Leidos (11/07/25)
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  • Senior Software Developer - TS /SCI…

    Leidos (Reston, VA)
    …**Required clearance:** Candidates for consideration **must possess an active and in-scope** Top Secret clearance with the ability and willingness to obtain ... Mission Solutions Business Area at Leidos seeks a Software Engineer to lead the creation of new software capabilities...and collect data within both a Windows and a Linux /Unix environment - Ability to work closely with users… more
    Leidos (09/21/25)
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  • ForeScout Engineer - Active TS /SCI…

    ENS Solutions (Reston, VA)
    …to solve complex security challenges. You will lead a team as they engineer solutions to complex challenges for customers using knowledge network engineering, Active ... complexities of security with a wide variety of audiences, including senior management. + Manage infrastructure and cybersecurity controls, including enhanced… more
    ENS Solutions (12/06/25)
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  • Systems Engineer - Senior

    Noblis (Chantilly, VA)
    Responsibilities As a Senior Systems Engineer , you will... Top Secret environments. + **Active Top Secret ( TS ) clearance with ... May require flexible scheduling to support critical operations in Top Secret environments. \#FundedPosition Desired Qualifications + Active TS /SCI with CI… more
    Noblis (11/20/25)
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  • Linux Engineer

    Arena Technical Resources, LLC (Chantilly, VA)
    …VA, US Job ID: ATR 17717 Job Description Job Title: Linux Engineer Location: Chantilly, VA Eligibility: Top Secret /SCI clearance with current CI ... required The Systems Engineering team is seeking a driven Senior Linux /UNIX Systems Administrator that is highly...- Experience writing detailed, technical documentation -8570 Compliance -Active TS /SCI + CI Poly - Ability to respond to… more
    Arena Technical Resources, LLC (11/29/25)
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  • Information System Security Engineer

    Amentum (Warrenton, VA)
    …program is to support, operate, and maintain the Distributed Continuity Integrated Network - Top Secret Enterprise Services (DCIN- TS ES) which is a ... If so, look no further. Amentum is seeking a Senior Information System Security Engineer (ISSE) to...at multiple classifications levels. **Requirements:** * Must have active Top - Secret clearance with SCI or TS more
    Amentum (12/05/25)
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  • Linux Systems Engineer

    SAIC (Arlington, VA)
    …deep web and dark web. Clearance/Citizenship Requirements: + US Citizenship with an active Top Secret Clearance with ability to obtain SCI (Active and/or PR ... **Description** Seeking a Senior Systems/Network Engineer , working with a...day one. + KEY - Advance knowledge of RedHat Linux and RedHat OpenShift. + KEY - Expertise in… more
    SAIC (12/06/25)
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  • Senior DevOps Engineer

    Noblis (Chantilly, VA)
    Responsibilities As a Senior DevOps Engineer , you will be...of experience in DevOps or related field + **Active Top Secret ( TS ) clearance with ... infrastructure as a service provider + Configure and manage Linux -based servers to serve dynamic websites + Debug cluster-based...Train (ART) activities + Support the multi-enclave environment (Unclassified, Secret , and Top Secret ) +… more
    Noblis (11/20/25)
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  • Principal or Senior Principal Network…

    Northrop Grumman (Fairfax, VA)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 50% of the Time **Description** At Northrop Grumman, our ... Aeronautics Systems is looking to add a **Principal or Senior Principal Network and Communications Field Service Engineer...by Company, based on OCONUS location. + **Active** **DoD** ** Top Secret ** clearance (with a background investigation… more
    Northrop Grumman (12/04/25)
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  • Senior Malware Engineer

    Leidos (Alexandria, VA)
    …Malware Engineer ** on the DISA GSM-O program in Alexandria, VA.An active Top Secret security clearance and demonstrated advanced technical ability in reverse ... the Windows operating system and other operating systems (eg, Linux or Unix); + Demonstrated experience with cyber security...(eg, Python, C, C++, Ruby) **Basic Qualifications:** + **Active Top Secret clearance or higher** (program can… more
    Leidos (10/31/25)
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  • Research Science / Senior AI Machine…

    CACI International (Sterling, VA)
    … Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: Up to 10% ... 1/1/2100 **CACI has an exciting new opportunity for a Senior AI and Machine Learning Research Engineer ....and at least 4 years' experience.** **Must have active Top Secret security clearance.** **Experience developing models,.**… more
    CACI International (11/25/25)
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  • Data Scientist / Senior AI Machine Learning…

    CACI International (Sterling, VA)
    … Job Category: Science Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: Up to 10% ... Opportunity:** CACI has an exciting new opportunity for a Senior AI and Machine Learning Research Engineer ....as dictated by the contract + Must have active Top Secret Clearance. _Desired:_ + Ph.D. in… more
    CACI International (11/25/25)
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  • SAP NS2 Senior Cloud Engineer

    SAP (Herndon, VA)
    …Cyber Security, Information Security, Engineering, Information Technology. MA/MS Preferred. + Top Secret Clearance with Polygraph Note: The job description ... benefit options for you to choose from. **SAP NS2 Senior Cloud Engineer /Systems Administrator - Onsite -...Engineer /Systems Administrator - Onsite - Chantilly, VA** **Active TS SCI with Polygraph Required** **NS2 COMPANY DESCRIPTION** SAP… more
    SAP (10/21/25)
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  • Senior Cyber Risk Manager (Splunk…

    The MITRE Corporation (Mclean, VA)
    …a PhD; or equivalent combination of related education and work experience. + Active Top Secret clearance with SCI eligibility. Ability to obtain and maintain a ... Security Services Division (R300) is looking to fill a Senior Information Systems Security Engineer position, with...candidate to have a minimum of the following clearance(s): Top Secret This requisition requires the hired… more
    The MITRE Corporation (11/08/25)
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  • Senior DevOps Engineer

    CACI International (Chantilly, VA)
    …Aerospace Engineering, Computer Engineering, Physics, Math, or equivalent experience + Active TOP SECRET security clearance with SCI eligbility + Willing to ... Senior DevOps Engineer Job Category: Engineering...Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of Travel Required: Up… more
    CACI International (11/07/25)
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  • Senior Infrastructure / DevOps…

    CACI International (Chantilly, VA)
    Senior Infrastructure / DevOps Engineer Job...Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of ... * * * **The Opportunity:** CACI is currently looking for an experienced Senior Infrastructure (Platform) Engineer to join our team developing next generation… more
    CACI International (10/25/25)
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