• Software Engineer Sr Advisor…

    General Dynamics Information Technology (Fairfax, VA)
    …8 + years of related experience **US Citizenship Required:** Yes **Job Description:** Software Engineer Sr Advisor Deliver simple solutions to complex ... Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** Software...problems as a Software Engineer Sr Advisor at… more
    General Dynamics Information Technology (10/21/25)
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  • Principal / Sr . Principal DevOps…

    Northrop Grumman (Chantilly, VA)
    …& mission operations This requisition may be filled at either the **Principal DevOps Software Engineer ** or ** Senior Principal DevOps Software ... application of technical standards, theories, concepts, and techniques **Basic Qualifications for** ** Senior Principal DevOps Software Engineer ** **:** +… more
    Northrop Grumman (12/04/25)
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  • Sr . Software Engineer

    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...as both an individual and a member of our top -notch agile development team building a large complex enterprise… more
    Leidos (12/10/25)
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  • Senior Software Engineer

    KBR (Chantilly, VA)
    Title: Senior Software Engineer KBR is seeking a Senior Software Engineer to join our team. The candidate will leverage their extensive ... software engineering experience and skillsets to provide Systems Engineering...Perform other duties as assigned Minimum Qualifications: + Active TS //SCI with CI Polygraph + Bachelor's degree in computer… more
    KBR (12/02/25)
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  • Senior Software Engineer

    KBR (Chantilly, VA)
    Title: Senior Software Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... the future of space defense. KBR is seeking a Senior Software Engineer to join...Perform other duties as assigned Minimum Qualifications: + Active TS //SCI with Polygraph + Bachelor's degree in computer science,… more
    KBR (10/21/25)
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  • Sr . Principal Cyber Software

    Northrop Grumman (Chantilly, VA)
    …position will be located at a Mission Systems Sector site in Chantilly, VA. As a Senior Software Engineer on the Mobile Development team, you will be ... career. **Northrop Grumman Mission Systems** is seeking an experienced ** Senior Principal Cyber Software Engineer **... software design documentation. **Preferred Qualifications:** + Active Top Secret / SCI security clearance with… more
    Northrop Grumman (10/21/25)
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  • Senior Software Engineer

    ManTech (Alexandria, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior Software Engineer ** to join our team in **Alexandria, VA** . As part of the position, ... you will act as a Software Engineer designing and implementing services and...**Clearance Requirements:** + Must possess a current and active TS /SCI **Physical Requirements:** + The person in this position… more
    ManTech (10/16/25)
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  • Software Engineer (lead) - level 4

    Northrop Grumman (Fairfax, VA)
    …(** _must have to be considered_ **)** + Requires an **active** DoD Top - Secret **( TS )** with Sensitive Compartmented Information **(SCI)** **clearance** **at ... your pioneering spirit to our collaborative teams. This _Software Engineer (lead)_ _- Level 4_ role at our **Fairfax,...off. This role will lead a small team of software developers to advance a new tool that simulates… more
    Northrop Grumman (11/19/25)
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  • Software Engineer - Level 3 or 4

    Northrop Grumman (Fairfax, VA)
    …detailed below as well as the interview assessment._ + Requires an **active** Top - Secret ( TS )/Sensitive Compartmented Information (SCI) clearance [ ** TS ... your pioneering spirit to our collaborative teams. This _Software Engineer - Level 3 or 4_ role will be... development experience + PhD with 1 year of software development experience + **Level 4** : ( Senior more
    Northrop Grumman (12/25/25)
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  • Integration and Test Software

    CACI International (Fairfax, VA)
    …to 25% Type of Travel: Continental US * * * CACI is currently looking for a Senior Integration and Test Software Engineer to join our team developing next ... Integration and Test Software Engineer Job Category: Engineering Time...Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of… more
    CACI International (12/17/25)
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  • Senior Software Engineer

    Amentum (Springfield, VA)
    …the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a ** Senior Software Engineer ** to join our team of passionate individuals in ... the system as a whole. **Responsibilities:** As a GEODS Senior Software Engineer , you will...a clear and direct manner **Clearance Required:** * Active TS /SCI with the ability to gain and maintain a… more
    Amentum (12/05/25)
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  • Senior Software Engineer

    Cinteot (Fort Belvoir, VA)
    SENIOR SOFTWARE ENGINEER REQUIREMENTS: + Active TOP SECRET /SCI + Bachelor's Degree in Systems Engineering, Software Engineering, or Computer ... JAVA, XML, PHP Oracle, MS SQLServer, ColdFusion Server, CFML, CFScript IIS, Sencha Software tool, Python and Windows Server 2016R@ or higher. + Experience in writing… more
    Cinteot (11/05/25)
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  • Senior Software Engineer

    Parsons Corporation (Centreville, VA)
    …and redefine what's possible. **Job Description:** Parsons is looking for an amazingly talented ** Senior ** ** Software Engineer ** to join our team! In this ... of features + Work within a team to develop software that supports Point of Entry sites worldwide +...system availability **What Required Skills You'll Bring:** + Active Top Secret /SCI clearance + 10+ years of… more
    Parsons Corporation (12/02/25)
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  • Software Engineer

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a ** Software Developer** to support the design, build, and deploy a bi-directional AWS API Gateway capable of sending and pulling ... is located in **Chantilly, VA** and requires an **active TS /SCI clearance with Polygraph** . This project is part...with existing data providers using JSON, XML or other software . + Design, develop, and implement scalable, elastic micro… more
    SAIC (11/14/25)
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  • Sr Specialist, Systems Engineer

    L3Harris (Chantilly, VA)
    …land, sea and cyber domains in the interest of national security. Job Title: Sr Specialist, Systems Engineer (Cloud Systems) Job Code: 32135 Job Location: ... organizations here: https://www.l3harris.com/capabilities/space Essential Functions: We are seeking a software systems engineer to join our C2 development… more
    L3Harris (12/21/25)
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  • Senior Mechanical Engineer

    Johnson, Mirmiran, and Thompson Inc. (Quantico, VA)
    …the Top 500 Design Firms. Position summary: JMT is seeking a Top Secret Cleared Senior Mechanical Engineer in the Quantico, VA area for an exciting ... preparing mechanical load calculations. + Experience with computer-assisted design software such as Revit, and Sketch Up Nonessential Functions...as part of a team Required Experience + Active Top Secret US Government Security Clearance. +… more
    Johnson, Mirmiran, and Thompson Inc. (11/04/25)
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  • Senior Mechanical Engineer

    Jacobs (Chantilly, VA)
    …protection, construction, etc.) * Professional Engineer (PE) Registration desired * Active Top Secret clearance, ability to acquire a CI Poly. Jacobs is an ... evolve, grow, and succeed - today and into tomorrow. The Mechanical Engineer will have essential multi-discipline team representation and be self-motivated, well… more
    Jacobs (12/04/25)
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  • Security Engineer /Architect (Hybrid)

    Huntington Ingalls Industries (Fort Belvoir, VA)
    …US Citizenship required. + 9+ years of experience as an ISSE or security-focused software / systems engineer with large multi-tiered programs and Bachelors in ... Enlighten, honored as a Top Workplace from USA Today, is a leader...solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science.… more
    Huntington Ingalls Industries (12/12/25)
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  • Sr . Cloud Engineer ( TS

    SMX (Fort Belvoir, VA)
    Sr . Cloud Engineer (4792) ( TS /SCI) (Ft. Belvoir, VA)at SMX(View all jobs) (https://www.smxtech.com/careers/) Fort Belvoir, VA SMX is seeking a ** Sr . ... to Infrastructure-as-Code/Configuration-as-Code (IaC/CaC) and system documentation. + Ensure the software can be deployed successfully in all environments (eg, AC2SP… more
    SMX (11/05/25)
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  • Software Developer/SME

    Amentum (Chantilly, VA)
    …security and intelligence mission. **Your Impact:** We are seeking a talented and experienced Senior Software Engineer to join our dynamic team. The ideal ... Security, & Intel space? If so, look no further. Amentum is seeking a ** Software Developer** to join our team of passionate individuals in **Chantilly or Herndon,… more
    Amentum (10/27/25)
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