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  • Senior Backend Engineer - Go, Graphs & Scalable Cloud APIs

     ...its cyber and electromagnetic capabilities. You’ll design reliable Go services, model graph relationships, and ship high-throughput APIs across cloud and on‑prem environments. You’ll collaborate with product and domain experts to turn operator needs into durable platform... 
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    Twenty

    Arlington, VA
    1 day ago

  • Senior API/Java/Python Developer

     ...active U.S. Government Security Clearance at the TS/SCI level with CI Polygraph.Vantor 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... 
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    Permanent employment
    Full time

    Maxar Technologies

    Arlington, VA
    2 days ago

  • DSCA Full Stack Front-End Developer Mid (Software Development Analyst) - 30392

    $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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    HII Mission Technologies Division

    Arlington, VA
    2 days ago

  • Frontend Developer, Palantir

    $102.5k - $170.9k

     ...offering provides a full spectrum of solutions for designing, developing, and operating cutting-edge Data and AI platforms, products, insights...  ...Workshop, the Ontology, Object Views, Actions, and Foundry APIs or SDKs.Maven Smart System and other Palantir Foundry data-... 
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    Local area

    Deloitte

    Rosslyn, VA
    4 days ago

  • Mobile App Developer with API

     ...Key Responsibilities: Design, develop, and maintain mobile applications for Android and or iOS Build and integrate RESTful APIs and third-party services Ensure application performance, quality, and responsiveness Collaborate with backend developers, designers... 
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    Full time

    Intelliswift - An LTTS Company

    Washington DC
    1 day ago

  • Senior 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... 
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    Full time
    Contract work

    Leidos

    Alexandria, VA
    19 hours ago

  • Senior Full-Stack Engineer - Cloud-Native API & GraphDB

     ...Engineer 5 in McLean, VA to lead architecture and modernization of large-scale cloud-native systems. You will guide teams, design scalable APIs, and set strategic tech directions across EPTech initiatives. The role requires deep experience in Java, Scala, Python, Go, Node.js,... 
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    Remote work

    Capital One

    Mc Lean, VA
    1 day 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... 
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    For contractors
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    Relocation

    RuneTech

    Arlington, VA
    2 days ago

  • Full-stack Engineer 5 (GraphDB & API Platform) (Enterprise Platforms Technology)

    $229.9k - $262.4k

     ...customer data and relationship capabilities, while guiding teams of developers in building resilient cloud-native systems. You will work...  ...within Enterprise Platforms Technology (EPTech)-designing scalable APIs, data contracts, and self-service platform services that... 
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    Capital One

    Mc Lean, VA
    1 day ago

  • Senior Full-Stack Engineer (Python/Go) — AWS & APIs

    Capital One is seeking a Full-Stack Engineer 4 to lead and develop cloud-based microservices and full-stack solutions using Python, Go, APIs, and AWS. The role sits in the Cloud Operations Resilience Engineering (CORE) Technology division, focusing on observability, resilience... 
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    Capital One Group

    Mc Lean, VA
    5 days ago

  • Senior Full-Stack Engineer (Python/Go, AWS, APIs)

     ...robust cloud solutions for millions of customers. Required: 4+ years in software engineering, 2+ years on public cloud platforms (AWS, GCP, Azure). Preferred: 7+ years in Go/Python, 4+ years AWS, strong API experience, and frontend JS/TS skills. #J-18808-Ljbffr Capital One
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    Capital One

    Mc Lean, VA
    5 days ago

  • DSCA Senior Front-End Full-Stack/Platform Engineer (Software Development Analyst) - 30710

    $150k - $165k

     ...experienced Senior Front-End Full‑Stack Developer / Platform Engineer (React & TypeScript)...  ...secure, intuitive, and high‑performance web applications that enable mission and business...  ...that integrate with enterprise APIs, data services, and AI‑enabled capabilities... 
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    HII Mission Technologies Division

    Arlington, VA
    19 hours ago

  • Full Stack Developer

     ...Solutions is recruiting for a Full Stack Developer to support our USPSOIG contract in Arlington...  ...visual design Write effective APIs Build features and applications with a...  ...Familiarity with databases (e.g. MySQL, Teradata), web servers (e.g. Apache) and UI/UX design... 
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    Contract work
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    Local area

    Dexian Government Solutions

    Arlington, VA
    3 days ago

  • Senior Backend Engineer

    $160k - $225k

     ...through production. You will define service boundaries, design APIs and data models, choose communication and persistence patterns,...  ...-driven systems using Apache Kafka and similar technologies. Develop real-time communication infrastructure using WebRTC, LiveKit,... 
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    Flexible hours

    BluJuniper

    Arlington, VA
    3 days ago

  • Full-Stack Engineer 4 (Python, GO, API, AWS) (Cloud Operations Resilience Engineering)

    $197.3k - $225.1k

    Full-Stack Engineer 4 (Python, GO, API, AWS) (Cloud Operations Resilience Engineering) Do you love building and pioneering in the...  ...Lead a portfolio of diverse technology projects and a team of developers with deep experience in distributed microservices, and full stack... 
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    H1b
    Local area

    Capital One

    Mc Lean, VA
    5 days ago

  • Full Stack Developer - Software Engineer III - Top Secret clearance

    $113k - $188.4k

     ...latest materializations to the application, leveraging AI to create API endpoints for data ingest with partner agencies, modernize front...  ...Top Secret clearance3+ years of experience as a full-stack developer with Angular, Node.js, and Java3+ JavaScript/Typescript, Jenkins... 
    Local area
    Flexible hours

    Deloitte

    Rosslyn, VA
    2 days ago

  • Front End Web Developer

    $89.65k - $152.4k

     ...components, connect interfaces to .NET services and REST APIs, implement client-side validation and workflow behavior,...  ..., testers, product teams, and users.Key Responsibilities:Develop and maintain responsive web interfaces using HTML, CSS, JavaScript or TypeScript, and... 
    Full time
    Contract work
    Work experience placement
    Work at office
    Remote work

    ICF

    Reston, VA
    3 days ago

  • Full-Stack Cloud Developer

    $98k - $163k

     ...SupportTravel Required:Up to 10%Clearance Required:Ability to Obtain Public TrustWhat You Will Do:Design, develop, and test full‑stack components, including enterprise web service APIs, backend services, and user interfaces that consume REST APIsThis role involves building... 
    Full time
    Remote work
    Flexible hours

    Guidehouse

    Arlington, VA
    3 days ago

  • Full Stack Developer (hybrid)

    $170k - $210k

     ...Polygraph.Vantor has an exciting opportunity for a Full Stack Developer within our Intel sector advancing the national security mission...  ...design, development, and maintenance of software applications and APIs using Java and Python programming languages. This role often... 
    Full time

    Maxar Technologies

    Arlington, VA
    3 days ago

  • Full Stack Developer

    $107.9k - $195.05k

    Leidos is seeking an experienced Full Stack Developer to support the Compartmented Enterprise Services Office (CESO) program delivering...  ...reliable applications across the full technology stack (front-end, APIs/services, and data). Full stack developers can switch between... 
    Full time
    Work at office

    Leidos

    Arlington, VA
    1 day ago

  • Full Stack Developer

    $100k - $120k

     ...RequirementsProfessional certification(s) in a related field of web development and/or front-end/back-enddisciplinesDegree in Computer...  ...and UI/UX designExperience in designing and integrating different API architectures (e.g. REST, gRPC)Server management and deployment... 
    Permanent employment
    Work at office

    ECS Federal

    Arlington, VA
    2 days ago

  • Sr. Full-Stack Engineer

     ...Mark Center.As the Senior Full-Stack Engineer, you will design, develop, integrate, and field secure software applications that support...  ...simulation services, and command-and-control interfaces—through secure APIs and event-driven patterns.Build interfaces that clearly... 
    Full time
    Local area
    Immediate start

    Culmen International

    Alexandria, VA
    1 day ago

  • SharePoint Developer

    DescriptionSAIC is seeking a SharePoint Developer with an active Secret clearance who has superior...  ..., and develop applications using Rest API Query calls, JavaScript, JQuery, JSON, and...  ...SharePoint.Experience creating and managing Web Applications, creating and migrating Site... 

    Science Applications International Corporation

    Alexandria, VA
    4 days ago

  • Full Stack Engineer (FDE)

     ...Engineer to join our team in designing, developing, and deploying custom applications for our...  ...has a solid foundation in Linux, modern web applications, cloud technologies, and DevOps...  ...configure, manage, and optimize custom APIs and datasets, and contribute to cloud infrastructure... 
    Work experience placement
    Live in
    Work at office
    Local area

    Accenture

    Arlington, VA
    4 days ago

  • Full Stack Engineer - Mid-Level / Hybrid / Active Top Secret

    $86k - $138k

     ...quality frontend applications using Angular, TypeScript, and modern web frameworks as the primary focus of your work.Lead the development...  ...surfaced through the frontend.Collaborate with backend teams on API contracts and integration points, with occasional hands-on work... 
    Contract work
    Casual work
    Shift work

    Peraton Corporation

    Arlington, VA
    4 days ago

  • Senior Web Developer

     ...One Federal Solution (OFS) seeks a Senior Web Developer (Subject Matter Expert - Senior) to support a potential Federal Government client...  ...modern frontend frameworks. Design and develop middle-tier APIs and web services. Design, develop, and maintain relational... 

    One Federal Solution

    Arlington, VA
    1 day ago

  • Lead Fullstack Engineer - Flagship Product

    $160k - $225k

     ...BluJuniper is an AI and optimization company developing advanced software systems for complex...  ...Design and build sophisticated, interactive web applications using React and TypeScript....  ...high-performance backend services and APIs using Rust and PostgreSQL. Build intuitive... 
    Full time
    Live in
    Relocation
    Flexible hours

    BluJuniper

    Arlington, VA
    3 days ago

  • Java API Engineer

     ...Senior Java API Engineer We are seeking a Senior Java API Engineer to support and enhance a REST-based API platform that powers...  ...native mobile applications across iOS and Android platforms. Develop new backend features and integrations while ensuring system reliability... 

    RIT Solutions

    Washington DC
    3 days ago

  • DevOps Backend Engineer

    $77.6k - $176k

     ...resources to minimize repetitive tasks and free up the team’s developers to do what they do best—innovate. You’ll work together with fellow...  ...of experiencedeveloping and supporting backend applications, APIs, microservices, integrations, and automation services using Python... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    Arlington, VA
    3 days ago

  • Mid-Level Backend Software Engineer

    $87.1k - $157.45k

     ...application used across the organization for analytics and reporting. You’ll help build and maintain core backend services, develop RESTful APIs, support data‑driven functionality, and contribute to ongoing system enhancements within a Linux‑based environment. Your work... 
    Full time

    Leidos

    Alexandria, VA
    4 days ago