• Senior Back End

    BigBear.ai (Ashburn, VA)
    Overview BigBear.ai is seeking a Senior Back End Developer to lead backend development efforts, drive technical decision-making, and build high-quality, ... scalable backend systems. This role requires deep hands-on expertise and the ability to guide and mentor others. What you will do + Architect, design, and lead development of backend systems using Python and Flask + Own the creation and lifecycle of robust… more
    BigBear.ai (12/05/25)
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  • Senior Back End

    BigBear.ai (Ashburn, VA)
    Overview BigBear.ai is seeking a Backend Developer ( Senior ) to join our team to begin an exciting and challenging career in Ashburn, VA. What you will do + ... Working closely with the tech lead and senior developers, the Mid-Level Java Developer will participate in the system architecture design, systems engineering,… more
    BigBear.ai (12/05/25)
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  • Full Stack Developer , Senior

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …programs \#CGIFederalJob \#LI-MB7 \#ClearanceJobs \#CGIintelligencecareers \#MARSCareers \#DICE **Skills:** + Back End Development + English + Full Stack ... **Full Stack Developer , Senior ** **Category:** Software Development/ Engineering... is a versatile software professional skilled in both front- end and back - end web development.… more
    CGI Technologies and Solutions, Inc. (12/06/25)
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  • Senior Salesforce System Developer

    Qualtrics (Reston, VA)
    …build smarter systems that let our employees focus on what's meaningful. As a senior developer , you will be responsible for building and maintaining the platform ... on a mission to bring humanity, connection, and empathy back to business. Join over 5,000 people across the...across the globe who think that's work worth doing. ** Senior Salesforce System Developer ** **Why We Have… more
    Qualtrics (10/13/25)
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  • Senior Full-Stack Developer

    CGI Technologies and Solutions, Inc. (Reston, VA)
    ** Senior Full-Stack Developer ** **Category:** Software Development/ Engineering **Main location:** United States, Virginia, Reston **Position ID:** J1025-0646 ... **Position Description:** CGI has an immediate need for a Senior Full-Stack Developer to join our team....with a passion for innovation, capable of working across front- end and back - end technologies, cloud… more
    CGI Technologies and Solutions, Inc. (10/09/25)
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  • Senior ServiceNow Developer

    CACI International (Arlington, VA)
    …Type of Travel: Local * * * **The Opportunity:** CACI is seeking a Senior Developer to develop highly complex, mission critical scoped and global applications ... Senior ServiceNow Developer Job Category: Information...solving urgent mission issues, supporting end to end platform development from back - end more
    CACI International (11/13/25)
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  • Senior AI Developer

    Steampunk (Mclean, VA)
    **Overview** We are looking for a highly skilled ** Senior AI Developer ** to design, build, and optimize advanced AI solutions across predictive, generative, and ... and the ability to translate mission needs into robust, production-ready AI capabilities. The Senior AI Developer will work across the full stack of AI… more
    Steampunk (11/18/25)
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  • Senior Software Developer

    Leidos (Chantilly, VA)
    …perform unit testing + Support Front end development using Angular + Support Back end development using NestJS + Utilize agile techniques to manage workload ... **Description** Leidos is seeking a Full Stack Software Developer with expertise in modern front- end ...such as Angular, React, or Vue as well as back - end development using TypeScript (eg, building RESTful… more
    Leidos (10/10/25)
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  • Senior Full Stack Developer

    General Dynamics Information Technology (Fairfax, VA)
    …+ years of related experience **Job Description:** We are seeking a highly skilled Senior Developer with over 10 years of experience in software development, ... complex workflow systems, and experience integrating client application with back - end storage system in the cloud. Extensive...in a dynamic environment. We are looking for a Senior Developer who is passionate about leveraging… more
    General Dynamics Information Technology (10/21/25)
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  • Remote Senior Java Backend Developer

    Shuvel Digital (Ashburn, VA)
    …interest in applying his or her talents to national and homeland security problems. The senior developer will use Java, SQL, and Oracle to design, develop, test, ... currently seeking a motivated, career and customer-oriented Java Backend Developer to join our team to begin an exciting...Recommend unique solutions in a multidisciplinary environment (eg, utilizing Front- end , back - end or other multi-… more
    Shuvel Digital (09/25/25)
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  • Senior Ruby on Rails Developer

    Steampunk (Mclean, VA)
    …see the real impact of their work in human lives every single day. **Contributions** As a ** Senior Ruby on Rails Developer ** , you will be working with a team of ... with Ruby and associated frameworks (eg Ruby on Rails) + 3+ Experience with multiple back - end languages (eg C, C#, Java, Python, Ruby on Rails) and JavaScript… more
    Steampunk (12/04/25)
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  • Senior Applications Developer

    Oracle (Reston, VA)
    …& Intelligence is seeking a highly experienced and motivated **Sr Applications Developer ** to join our **Consulting Services organization** on an exciting new ... contract. The Sr Applications Developer role will be part of a team of...engineers delivering a cloud-native, centralized data platform that delivers end -to- end budget traceability. **This role is a… more
    Oracle (11/25/25)
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  • Senior Software Developer

    Steampunk (Mclean, VA)
    **Overview** As a ** Senior Software Developer ,** you will work with a team of developers to deliver software features, APIs, and micro-service solutions. We are ... a variety of stakeholders **Qualifications** **Required:** + 5 Years of experience with front- end and back - end software development languages like Java and… more
    Steampunk (11/29/25)
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  • Senior Software Engineer (UI…

    Quality Technology Services, LLC (Ashburn, VA)
    …to enhance user engagement and functionality. + Effectively communicating with designers, back - end developers, project managers, and other team members to ensure ... The ** Senior Software Engineer** develops java/angular applications leveraging a...has 10 plus years of direct experience in angular (front- end ) code by establishing patterns, best practices, and underlying… more
    Quality Technology Services, LLC (09/24/25)
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  • Senior ServiceNow Developer

    Guidehouse (Mclean, VA)
    …goals and objectives to fulfill their mission. The ServiceNow Sr. Developer is responsible for the development, implementation, and administration of ServiceNow ... + Provide demonstrations of developed applications to product owners and end users. + Participate in platform upgrade activities, including regression testing… more
    Guidehouse (09/29/25)
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  • Palantir Developer - Senior

    Guidehouse (Arlington, VA)
    …the ontology (data model) and data pipelines supporting the applications. + Support End to End data pipeline development - responsible for using Python ... staleness or data quality. + Develop and execute unit tests, integration tests, and end -to- end tests to ensure software quality. + Debug and resolve issues… more
    Guidehouse (11/12/25)
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  • Senior Software Developer - TS/SCI…

    Leidos (Reston, VA)
    …Java experience, building HTML/JavaScript (eg. Angular) user interfaces, data storage back ends in json, sql, or no-sql databases. Experience building simulation ... scenario-design tools - 3+ years' experience delivering tools or solutions to end users, guiding them through adaptation, and working through emerging requirements.… more
    Leidos (09/21/25)
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  • Android Developer

    System One (Ashburn, VA)
    …stability and performance improvements * Collaborate with cross-functional Agile teams including front- end , back - end , and product stakeholders * Participate ... * Soft Skills: * Accountability * Cross-functional communication * Proactive problem-solving Senior Mobile Developer (Level 3) Focus: Technical leadership and… more
    System One (10/09/25)
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  • .NET/React Developer

    CACI International (Arlington, VA)
    …Local * * * **The Opportunity:** The CACI team is looking to add a Senior .NET/React Developer to their growing software development contract with the Department ... of State in Rosslyn, VA. The Senior .NET/React developer will be responsible for...accessible user interfaces using React, integrating them with .NET back - end services and APIs **Qualifications:** _Required:_ +… more
    CACI International (09/19/25)
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  • Software Database Developer

    CACI International (Sterling, VA)
    …in .C#, NET, Angular, Java, Python, Ruby, etc. + Utilizing SQL Server + Front or back end developer + CSS3, Less, HTML, JavaScript, and jQuery + Integration ... (5) years or more experience in incremental software development projects + Senior Software Database Developer T4 - College degree (BS) in relevant area of study… more
    CACI International (09/25/25)
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