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  • Security-Cleared API/Backend Engineer (Java, Python)

    Vantor is seeking an API/Java/Python Developer to join our Services team, working directly with U.S. Government customers to sustain and modernize a Program of Record for all-source FMI. You will design RESTful APIs and microservices in Java and Python, build data pipelines... 
    Suggested

    InvestedintheMission

    Arlington, VA
    4 days ago

  • Backend API Developer

    $119k - $161k

     ...Backend API DeveloperPosition Summary The Backend API Developer builds and operates the service layer behind an operator application in a cyber command center supporting national cyber defense across Critical Infrastructure and government partners. Responsibilities focus... 
    Suggested
    Temporary work
    Immediate start
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Arlington, VA
    3 days ago

  • Backend API Developer

    $119k - $161k

     ...Backend API Developer The Backend API Developer builds and operates the service layer behind an operator application in a cyber command center supporting national cyber defense across Critical Infrastructure and government partners. Responsibilities focus on low-latency... 
    Suggested

    General Dynamics

    Arlington, VA
    4 days ago

  • Full-Stack Engineer: AWS, AI-Driven Microservices & Secure APIs

    Spatial Front, Inc. is seeking a Full Stack Developer to design, build, and modernize secure, high-availability systems in a federal Agile environment. You will work on APIs, UI, data integrations, and AI-enabled features, leveraging Node.js, TypeScript, and AWS services... 
    Suggested

    Spatial Front

    Arlington, VA
    5 days ago

  • Remote Full Stack Developer - Cloud & API Expert

    BayNova is seeking a hands-on Full Stack Developer to join our team in support of a federal government client in a fully remote role. You...  ...experience with Java, JavaScript, and Python, plus cloud, REST APIs, and modern frontend frameworks like Angular. #J-18808-Ljbffr... 
    Suggested
    Remote job

    BayNova

    Arlington, VA
    5 days ago

  • Marvelous FrontEnd Software Engineer (2+ years - Senior Level)

     ...join us to work on cloud-native full-stack web applications, advanced data analysis tools...  .... Our engineer-led software teams develop technical solutions on an aggressive schedule...  ...working on fullstack solutions with REST APIs and complex data Experience with SDLC tools... 
    Suggested
    Full time
    For subcontractor

    Black Cape

    Arlington, VA
    1 day ago

  • DSCA Full Stack Front-End Developer Mid (Software Development Analyst) - 29702

    $110k - $135k

     ...Technologies! We are seeking a Full Stack Front-End Developer Mid-level (Software Development Analyst)...  ..., develop, and modernize enterprise web applications with a strong emphasis on...  ...SharePoint Framework (SPFx), SharePoint APIs, Microsoft Graph API, Power Apps, and... 
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    Full time
    Work at office
    Local area
    Work from home
    Worldwide
    Home office

    HII Mission Technologies Division

    Arlington, VA
    4 days ago

  • Senior Full-Stack Engineer: Cloud, APIs & DevOps

     ...International Inc. in McLean, VA is seeking a seasoned Full-stack Software Developer for a 2+ year contract. You will work across frontend and backend technologies, develop scalable RESTful APIs and cloud-based solutions, and collaborate with product and QA teams. Candidates... 
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    Contract work

    TWO95 International

    Mc Lean, VA
    3 days ago

  • Senior Backend Engineer - Integrations & APIs

     ...processes, including retries and state management. You will design and maintain in-house services for high-throughput data processing and RESTful/webhook APIs with strong versioning, rate limiting, and error handling. #J-18808-Ljbffr PVH (Tommy Hilfiger/Calvin Klein)
    Suggested

    PVH (Tommy Hilfiger/Calvin Klein)

    Bethesda, MD
    2 days ago

  • Senior Backend & API Engineer (Hybrid) - Microservices

    Exiger is seeking a Senior Software Engineer to design and develop software projects in McLean, VA. This role involves creating and maintaining APIs, collaborating with cross-functional teams, and automating processes. Candidates should have 6+ years of programming experience... 
    Suggested
    Flexible hours

    Exiger

    Mc Lean, VA
    2 days ago

  • API/Java/Python Developer, SME TS Clearance REQUIRED

     ...API/Java/Python Developer, SME TS Clearance Required CGI Federal has an exciting opportunity for an API/Java/Python Developer within our Intel sector advancing the national security mission through cutting edge technology. You must have a passion for keeping pace with... 
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    CGI

    Arlington, VA
    2 days ago

  • Frontend Developer

     ...Workplaces honoree, is seeking a Frontend Developer to join our team. The ideal candidate...  ...performance user interfaces for Federal Government web applications. This role requires strong...  ...frontend applications with backend APIs and data services.Conduct cross-browser and... 
    Suggested
    Full time
    Contract work

    Spatial Front

    Arlington, VA
    3 days ago

  • Backend & API Engineer (Python/Golang, AWS) - Hybrid

    A tech solutions company is seeking a Python Developer with Golang expertise to join their team in McLean, VA. The ideal candidate will...  ...performance. Responsibilities include building high-performance RESTful APIs and integrating applications with cloud environments.... 
    Suggested

    Lorvenk Technologies

    Mc Lean, VA
    5 days ago

  • Front End Developer

    $83.39k

     ...Front-End Developer DMI, LLC is seeking a Front-End Developer to join us. A PowerSuite Web Application Developer who can assist with the development of front-end web applications...  ...‑tiered applications such as Web services, APIs, clustered environments, database servers,... 
    Suggested

    DMI (Digital Management, LLC)

    Alexandria, VA
    5 days ago

  • Front End Developer (only with current Top Secret clearance)

     ...validation.)The ideal candidates will be hands-on developers and engineers. Requirements/Must Have: Experience with Front-End web development, including JavaScript,...  ...Experience with unit testing Knowledge of REST APIs Experience developing, managing, and... 
    Suggested
    For contractors

    Select Search Associates

    Arlington, VA
    3 days ago

  • Front End Developer

    $120.21k - $180.31k

     ...Technologies is actively seeking a Front End Developer to join our Software Engineering team....  ...individuals, passionate about modern web component-based frameworks and large-scale...  ...-end interfaces that interface with REST APIs and web sockets. Active Top Secret Clearance... 
    Contract work
    Work at office
    Local area

    Two Six Technologies

    Arlington, VA
    3 days ago

  • Front End Engineer

     ...team working at the intersection of modern web engineering, operational logistics...  ...that support long-term product growth. Develop intuitive user experiences that enable operators...  ...critical operational insights. Integrate with APIs, WebSocket-based services, and distributed... 
    Full time
    For contractors
    Work at office

    RuneTech

    Arlington, VA
    5 days ago

  • TS/SCI API & Java/Python Developer Secure Cloud

    Vantor is seeking an API/Java/Python Developer to provide engineering services for U.S. Government customers, focusing on high-performance API-driven services and data pipelines. Candidates must have a TS/SCI clearance and relevant experience in Java and Python development... 

    Vantor

    Arlington, VA
    2 days ago

  • Full Stack Web Developer: APIs, Security & CI/CD

    A government service provider based in Virginia is seeking a Full Stack Web Developer to enhance software applications within various teams. The ideal candidate will have 11 years of experience and a Bachelor's degree in a related field, showcasing expertise in JavaScript... 
    Flexible hours

    CGS Federal (Contact Government Services)

    Arlington, VA
    5 days ago

  • Frontend Software Engineer

     ...with the following3+ years of experience engineering Single Page Web Applications with a modern framework in complex environments. React...  ....Designed and engineered complex end-to-end flows of data from APIs to render large volumes of data on screen.Have expertise in Typescript... 

    Improbable

    Arlington, VA
    3 days ago

  • TS/SCI API Engineer — Java & Python

    $137k - $200.2k

    Vantor Inc. is seeking an API/Java/Python Developer in Arlington, Virginia, to provide system and software engineering services for U.S. Government clients. Key responsibilities include designing and maintaining RESTful APIs and microservices, while collaborating closely... 

    Vantor Inc.

    Arlington, VA
    2 days ago

  • Senior Full-Stack Engineer (Hybrid) - Cloud & API Leader

     ...seeking a Senior Software Engineer to design and build scalable web services for a global security system. The role is hybrid, requiring...  ...HQ. You will own architecture and delivery of high-availability API services powering Brivo's Access Control platform, guiding... 

    Brivo

    Bethesda, MD
    1 day ago

  • Senior Full-Stack Engineer: Cloud API Leader (Hybrid)

     ...a hybrid role, requiring on-site presence 2-3 days per week. You will architect, develop, and maintain high-availability services powering a global security platform. You’ll work on API services with Java/SpringBoot, Node.js/TypeScript, and serverless AWS Lambda, plus... 
    2 days per week
    3 days per week

    Brivo

    Bethesda, MD
    2 days ago

  • UI UX Engineer

    $107.9k - $195.05k

     ...for someone who is more than a front-end developer. You are passionate about how technology...  ...professional experience developing modern web-based user interfaces and user experiences...  ...developing or consuming RESTful APIs and integrating UI applications with backend... 
    Contract work
    Local area
    Immediate start

    Leidos

    Alexandria, VA
    3 days ago

  • Senior Fullstack Software Engineer

     ...more. Whether it’s a company navigating GTM or a program manager developing capabilities, we’re providing all sides with the intelligence...  ...Work across the full technical spectrum - from crafting robust APIs and type systems to building intuitive frontends and component... 
    Full time
    Work at office
    Work from home
    Flexible hours
    Night shift
    Weekend work

    Obviant

    Arlington, VA
    1 day ago

  • UI Developer

     ...UI Developer Location: Northern Virginia UI developer. The role entails building a browser-based portal which acts a repository for...  .... The pages will be dynamic and would interact with AWS services and other APIs. 3+ years’ experience doing similar tasks.... 

    United IT

    Alexandria, VA
    1 day ago

  • Senior Front End Engineer

     ...seeking an experienced Senior Front End Developer with a Top Secret Clearance to work on multi...  ...: Develop frontend features in a modern web component-based framework such as Vue or...  ...building frontends interfacing with REST APIs and web sockets Minimum of 2 years of... 
    Full time
    Work at office
    Local area
    Remote work

    Two Six Technologies

    Arlington, VA
    8 days ago

  • Full Stack Developer

    $150k - $200k

     ...Us: SwarmInt is a defense AI startup developing computer vision and edge AI capabilities...  ...feeds Implement backend services and APIs for data processing and integration Deploy...  ...computing, or IoT Knowledge of Python web frameworks and API design Experience... 
    Full time

    Swarmint

    Arlington, VA
    1 day ago

  • Full Stack Developer

    $72k - $210k

     ...Position Overview   The Remote Full Stack Developer is responsible for designing, developing,...  ...maintaining scalable, high‑performance web applications across both front‑end and...  ...frameworks. Implement server‑side logic, APIs, and integrations using languages such as... 
    Remote job
    Full time

    Children House Montessori

    Arlington, VA
    1 day ago

  • Full-Stack JAVA/REACT JS Developer

    $103.8k - $218.1k

     ...*The Opportunity:CACI is currently looking for a JAVA/REACT JS Developer with Agile methodology experience to join our team. You will serve...  ...and JSPDatabases: MS SQL, OracleUnderstanding of RESTful API design and developmentProficiency in version control systems (e.... 
    Contract work
    Work experience placement
    Local area
    Flexible hours

    CACI International

    Arlington, VA
    3 days ago