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  • Senior .NET Full-Stack Engineer - Cloud & APIs

     ...Washington, DC is seeking a senior .NET Full Stack Developer to design, build, test, and deploy robust web applications using .NET and related technologies. You...  ...with ASP.NET, MVC, SQL Server, C#, HTML5/CSS3, REST APIs, and modern front-end frameworks, plus familiarity with... 
    Suggested

    Bow Wave LLC

    Washington DC
    3 days ago

  • Senior Java Full Stack Developer — Enterprise APIs & UI

    EnIn Systems seeks a Senior Java Full Stack Developer with 10+ years of hands-on experience in enterprise-scale applications. You will design...  ...environment. Lead architectural decisions, implement RESTful APIs, and collaborate with cross-functional teams to ensure... 
    Suggested

    EnIn Systems

    Mc Lean, VA
    5 days ago

  • Senior API/Backend Engineer - TS/SCI Cleared (Java/Python)

    $137k - $200.2k

    MAXAR TECHNOLOGIES, INC. is seeking an experienced API/Java/Python Developer to join its team in Washington, DC. The role focuses on developing high-performance, API-driven services, ensuring secure coding practices, and collaborating with multidisciplinary teams to implement... 
    Suggested

    MAXAR TECHNOLOGIES, INC.

    Washington DC
    3 days ago

  • Frontend Web Developer

     ...Description We’re seeking a Frontend Web Developer with an active TS/SCI to build engaging, responsive, and accessible web interfaces for...  ...Tailwind CSS Experience consuming and integrating RESTful or GraphQL APIs Proficiency with Git and modern version control workflows (... 
    Suggested

    LT Consulting LLC

    Reston, VA
    4 days ago

  • Full Stack Engineer: Java/React for Healthcare APIs

    Guidehouse is seeking a Full Stack Engineer to build, maintain, and modernize VSAC systems. You will work on web applications, terminology services, value set authoring, APIs, and data pipelines in a healthcare setting. The role requires 5+ years of full stack experience,... 
    Suggested

    Guidehouse

    Bethesda, MD
    2 days ago

  • Full-Stack Engineer, Secure Cloud & API Development

    Easy Dynamics Corp in McLean, VA is seeking a software engineer to design, develop, and maintain backend services using Python 3, FastAPI, Pydantic, and SQLAlchemy, and to build REST APIs for OSCAL-based compliance workflows and document management. The role also involves... 
    Suggested

    Easy Dynamics Corporation

    Mc Lean, VA
    2 days ago

  • Geospatial Backend Engineer II - Real-Time APIs

     ...looking for a Software Development Engineer II in Washington, DC, to design and develop scalable backend services for mission-critical geospatial applications. This role involves creating APIs and collaborating with teams to optimize system performance and reliability in... 
    Suggested
    Relocation package

    Esri

    Washington DC
    5 days ago

  • Backend/API Engineer

    Backend/API Engineer Everforth ECS is seeking a Backend/API Engineer to work in the National Capital Region covering the Pentagon, Falls...  ...to production model artifacts within Unclassified networks. Develop scalable serving frameworks using Kubernetes, API gateways,... 
    Suggested
    Contract work
    Local area

    ECS

    Fairfax, VA
    3 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
    5 days ago

  • Senior Full-Stack Engineer, FinTech API & Platform

    $185k - $225k

     ...financial technology company in Austin is looking for a full-stack developer. This role requires 5+ years of software engineering experience...  ..., Node.js, and React desired. You'll work on building scalable APIs and user experiences while investigating issues proactively. A... 
    Suggested

    Method Financial

    Washington DC
    1 day ago

  • Full-Stack Developer - Python, AWS & API Solutions

    We are seeking a skilled Full-Stack Developer to join our team in supporting a government client. In this role, you will play a key part in integrating data source APIs, developing Python scripts, creating and managing databases, generating reports, and conducting testing... 
    Suggested

    Stackruit Ltd.

    Washington DC
    5 days ago

  • Backend API Engineer - Python/K8s | Hybrid (Minneapolis/DC)

    $125k - $190k

    Swoop Technologies is seeking a Backend Developer in Washington, DC to build services and features for SwoopOS. This hybrid role involves developing APIs, authoring Python packages, and ensuring service stability with a focus on security standards. Candidates should have... 
    Suggested

    Swoop Technologies

    Washington DC
    5 days ago

  • Web Developer

    $170k - $220k

     ...benefits available About the role Insight Xcite is seeking a Web Developer to support mission-critical operational and enterprise environments...  ..., and operational stakeholders Support integration of APIs and enterprise services into web applications Troubleshoot and... 
    Suggested
    Contract work
    Immediate start
    Flexible hours

    Insight Xcite

    Herndon, VA
    1 day ago

  • Full-stack Engineer - Model Zoo UI/API

    Full‑stack Engineer - Model Zoo UI/API Location: National Capital Region - Pentagon, Falls Church, Fairfax (position contingent upon...  ...operationalize AI capabilities at mission speed. Responsibilities Develop and advance user interface and application programming interface... 
    Suggested
    Contract work
    Local area

    ECS

    Fairfax, VA
    5 days ago

  • Full-Stack Engineer: Model Zoo UI/API (Secret Clearance)

    ECS in the National Capital Region seeks a Full-stack Engineer for the Model Zoo UI/API role. This position will primarily focus on developing user interfaces and API infrastructure to support artificial intelligence initiatives within the Department of War. Qualified... 
    Suggested

    ECS

    Fairfax, VA
    5 days ago

  • Remote Angular & NodeJS Engineer — Senior Backend/API

     ...based dashboards for healthcare EDI data. You will work across Java/NodeJS back‑end services and an Angular front-end, ensuring reliable API delivery on AWS and data accuracy for clinical users. The role requires 8+ years in software development with backend focus, strong... 
    Remote job

    Syms Strategic Group, LLC (SSG)

    Bethesda, MD
    5 days ago

  • Remote Full-Stack Developer (Angular/NodeJS) - Cloud & API

    Syms Strategic Group (SSG) is seeking a Full Stack Developer (Angular/NodeJS) - II to build a cloud-based Web Dashboard for processing healthcare EDI transactions...  ...Remote role within VA department, requiring strong API design and Angular front-end work. Ideal candidate... 
    Remote job

    Syms Strategic Group, LLC

    Washington DC
    1 day ago

  • Web Application / API Services Developer - Mid Level (FI2)

     ...Job Description Job Description Web Application / API Services Developer – Mid Level (FI2) Job Description: Looking for an opportunity to revitalize an application that is used by everyone in our customer space? That's right, we're in the enviable position... 

    Trinity ES LLC

    Herndon, VA
    a month ago

  • Java Full Stack Developer

     ...Title: Full Stack Developer - focus on microservices Architecture Location: On Site in...  ...integrate external software libraries and APIs into existing projects Below are the qualifications...  ...Excellent knowledge of front-end web programming languages, such as HTML, CSS,... 

    RIT Solutions, Inc.

    Reston, VA
    2 days ago

  • Senior React/Node.js Developer — Backend APIs

    A leading tech staffing agency in Washington, DC is seeking a seasoned developer with expertise in .Net and Node.js for a long-term project. The role involves backend architecture design, API integration, and frontend development with React. Candidates should have a master... 

    Mindlance

    Washington DC
    5 days ago

  • Geospatial Backend Engineer - APIs, Python & Node

    $97.24k - $162.24k

    Esri is looking for a backend software engineer in Washington, D.C. to build software leveraging its products and APIs to create geospatial processing services and automation solutions. The role emphasizes collaboration with dynamic engineers in a team environment. The... 

    Esri

    Washington DC
    5 days ago

  • Full Stack Java Developer

     ...Java Developer This role is heavily focused on JAVA, Angular8+, Springboot and Microservices...  .... Must have experience with web services and understanding of RESTful / SOA...  .... Good to have experience working with API Management Tools. Good to have Experience... 

    Samprasoft

    Reston, VA
    5 days ago

  • Senior Full Stack Java Developer

     ...Responsibilities Our client is seeking an experienced, Senior Full Stack Java Developer to support a customer on a long term program. The Full Stack...  ...: Angular (4 ,5, 6 or 7) Spring SQL Java JPA (JAVA Persistence API) / Spring Data JPA Requirements Required Skills: Solid resume... 

    Convirgence

    Herndon, VA
    4 days ago

  • Java Full Stack Developer

    $86k - $138k

     ...Java Full Stack Developer Job Locations US Requisition ID 2026-168660 Position Category Information...  ...end applications using Angular. * Build and optimize RESTful APIs and microservices architectures. * Integrate applications with... 
    Contract work
    Remote work
    Shift work

    Peraton

    Herndon, VA
    1 day ago

  • Fullstack Java Developer

    $120k - $145k

     ...OVERVIEW Reporting to the Lead Project Manager, the Full Stack Developer will help in the development of software and specialized...  ...Experience with design and development of Microservices and RESTful APIs in an AWS and Docker platform Experience with container (e.g... 
    Work from home
    Flexible hours

    Basecamp Consulting Solutions LLC

    Reston, VA
    2 days ago

  • Backend Java Developer

     ...business Preferred Qualifications ~4 years experience developing web services or distributed, messaging and event-based systems ~...  ...systems, especially REST based services ~ Strong API design, development, and management ~ Enthusiasm, curiosity,... 
    Contract work
    Immediate start

    Software Technology Inc

    Reston, VA
    4 days ago

  • Java Backend Engineer

     ...Software Developer Strong Java, Spring framework, Kafka, SQL and cloud experience such as Azure. Strong experience in RESTful Microservices...  ...Container technologies such as Docker on Kubernetes Strong API design, development, and management Experience with cloud... 

    Samprasoft

    Reston, VA
    5 days ago

  • Java Full Stack Developer

     ...build and enhance full‑stack applications by developing React front‑end features and creating...  ...Boot. You will set up and maintain REST APIs and microservices, then deploy and operate...  ...Ability to develop and maintain responsive web applications ensuring high performance,... 
    Work experience placement
    Local area

    Navitas Business Consulting

    Herndon, VA
    5 days ago

  • Senior Java Backend Developer

     ...Java Developer Location: Reston VA / Washington DC (Need local candidates within 75 miles)...  ...with Spring Stack – (Spring Core, Spring Web, Spring Boot and Spring MVC) Must have...  ...WebSphere/Weblogic/Apache Tomcat Experience in API development Experience with Oracle SQL/... 
    Permanent employment
    Local area

    Samprasoft

    Reston, VA
    5 days ago

  • Full Stack Java Developer

    $95 per hour

     ...Role : Full Stack Java Developer Location : Primarily, remote candidates MUST be local to the DC,D, and VA area. They may be required...  .... The tech environment includes AWS services such as EKS and API gateway, Aurora PostgreSQL, DB2, MongoDB, Angular 17, and Java 2... 
    Contract work
    H1b
    Local area
    Remote work

    3B Staffing LLC

    Herndon, VA
    2 days ago