Average salary: $58,358 /yearly

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  • Remote .NET 8 Backend Engineer - Microservices & APIs

     ...is seeking a .NET Backend Engineer to create event-sourced, microservices-based systems. The role involves designing and delivering APIs, integrating with ERP systems, and leveraging the actor pattern with Orleans. Ideal candidates will have a Bachelor's in computer science... 
    Suggested
    Remote work

    Eliassen Group

    Richmond, VA
    7 days ago

  • Full Stack API Developer- TS/SCI with Polygraph

    $187k - $253k

     ...experience US Citizenship Required: Yes Job Description: Deliver simple solutions to complex problems as an Full Stack API Developer at GDIT. Here, you'll tailor cutting-edge solutions to the unique requirements of our clients. With a career in application... 
    Suggested
    Temporary work
    Work experience placement
    Immediate start
    Remote work
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Chantilly, Loudoun County, VA
    5 days ago

  • Python / API Developer

     ...Python Developer/Software Engineer McLean VA (Onsite Hybrid Model) 12 Months | Extension Possible Job Description: Must Haves: Looking for a Python API Developer. Must have Python, Flask, SQL, Pandas, NumPy & Pytest, Unitest, Monkey patch. Experience... 
    Suggested

    Samprasoft

    McLean, VA
    2 days ago

  • Offshore AI Application Developer Cloud ML & APIs

     ...A technology solutions company is seeking an offshore AI Application Developer to support AI product development. You will develop AI-integrated applications and backend APIs, and work closely with onshore teams. Candidates should have a strong coding background in Python... 
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    GlobalWaveSoftech

    Roanoke, VA
    4 days ago

  • Java Lead - API Developer

     ...Job Title: Java Lead - API Developer Duration: 9 Months Location: Richmond VA 23238 We are looking for an API Developer Required Skills Programming Languages: Proficiency in at (Python, Java, Go) RESTful API Design: Deep understanding of REST principles, methods... 
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    Spectraforce Technologies

    McLean, VA
    12 hours 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...  ...to production model artifacts within Unclassified networks. Developing scalable serving frameworks using Kubernetes services, API... 
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    Contract work

    ECS

    Fairfax, VA
    2 days ago

  • Senior Backend/API Engineer

     ...Senior Backend/API Engineer Everforth ECS is seeking a Senior Backend/API Engineer to work in the National Capital Region covering...  ...-parity release operations at enterprise scale. Highly developed interpersonal and oral/written communication skills, with the ability... 
    Suggested
    Contract work

    ECS Limited

    Falls Church, VA
    2 days ago

  • Full-stack Engineer - Model Zoo UI/API

     ...Full-stack Engineer - Model Zoo UI/API Everforth ECS is seeking a Full-stack Engineer - Model Zoo UI/API to work in the National...  ...at mission speed. Responsibilities include: Developing and advancing user interface and application programming interface... 
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    Contract work

    ECS

    Fairfax, VA
    2 days ago

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

     ...Web Application / API Services Developer – Mid Level (FI2) 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 of starting from the beginning -- meaning we have the privilege... 
    Suggested

    Trinity Enterprise Services, LLC

    Chantilly, Loudoun County, VA
    11 days ago

  • Software Engineer - .NET / APIS

     ...build scalable, high-impact systems supporting global border security and threat detection. In this role, you'll develop C#/.NET backend services, APIs, and microservices that power real-time data processing and analytics platforms. You'll work closely with senior... 
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    Contract work
    Remote work

    SECURIPORT

    Reston, VA
    3 days ago

  • Software Engineer (Front-End) / APIS

     ...global border security, threat detection, and analytics systems. In this role, you'll develop responsive front-end applications and integrate with C#/.NET microservices and APIs powering real-time data platforms. You'll work alongside senior engineers, DevOps, and product... 
    Suggested
    Contract work
    Remote work

    SECURIPORT

    Reston, VA
    3 days ago

  • Remote API Developer

     ...Remote Api Developer Summit Human Capital is seeking a highly motivated remote API developer to support our client in Richmond, VA in the financial sector that has seen some exponential growth, doubling their size, in the last year. This position can be worked remotely... 
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    Remote work

    Summit Human Capital

    Richmond, VA
    3 days ago

  • API developer with Tenable

    $110k - $150k

     ...Job Title: API developer with Tenable Location: McLean, VA Type: Contract To Hire Compensation: $110,000.00 - $150,000.00 Contractor Work Model: Hybrid - onsite and remote Responsibilities Develop and maintain custom connectors between Tenable and internal... 
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    Full time
    Contract work
    For contractors
    Local area
    Remote work

    System One

    McLean, VA
    5 days ago

  • API Developer

     ...API Developer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a talented API Developer to join our team and play a key role in designing, building, and maintaining... 
    Suggested
    Temporary work
    For contractors
    Immediate start
    Flexible hours

    Cymertek

    Reston, VA
    4 days ago

  • Backend API's and Integrations Software Engineer III

    $78.8k - $131.3k

    Backend API’s and Integrations Software Engineer III Are you a Backend API developer looking to work for a mission driven global organization? About the role: We’re seeking a Software Engineer III with strong backend engineering skills to design, build, and operate distributed... 
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    Contract work
    Local area

    RELX

    Alexandria, VA
    1 day ago

  • Software Tester / QA Engineer (Web & API Testing)

     ...TS/SCI w POLY REQUIRED) Software Tester / QA Engineer (Web & API Testing) We are seeking a detail-oriented and technically...  ...Postman and Swagger to test, document, and validate APIs Develop and maintain automated test scripts using frameworks such as Cypress... 
    Full time

    Falls Technology

    Chantilly, Loudoun County, VA
    1 day ago

  • Senior Backend Developer, Data Platform

     ...Community.   We are seeking an experienced   Senior   Backend   Developer/ Engineer to join our   hybrid   agile team   and   help build...  ...~ Build integrations with internal and external data sources, APIs, and event streams   ~ Partner with data engineering,... 
    Work at office
    Work from home

    Vantor

    Reston, VA
    1 day ago

  • Mulesoft API Developer

     ...Sr MuleSoft API Developer Actively participate in the design, development, and deployment of MuleSoft applications Mule 4 and Mule 3 Development Experience API design API design and development security Salesforce connector custom connector best processing data weave... 

    Syntricate Technologies

    Richmond, VA
    1 day ago

  • Principal Engineer, API & MCP Platform

     ...is partnering with Babel Street to find a Principal Engineer, API & MCP Platform . Please see details below: About the Role...  ...and delivering API-first platform capabilities that enable both developers and AI agents to interact with Babel Street’s services. You will... 
    Work at office
    Remote work

    Hatch IT

    Reston, VA
    9 days ago

  • C# Developer

     ...C# Developer Position Seeking a C# developer to program, maintain code, and .NET solutions. In this role, you will be required to design...  ....NET framework. Debugging and maintaining written code (no API's). Defining and organizing projects on an ongoing basis.... 

    Accylerate, LLC

    Richmond, VA
    1 day ago

  • Remote Java Developer for Core Banking APIs

     ...System One is looking for a Java Developer to work remotely on contract. The role involves designing and developing complex software applications for banking platforms, requiring a Bachelor's in Computer Science and proficiency in Java, Agile methodologies, and essential... 
    Contract work
    Remote work

    System One

    Vienna, VA
    4 days ago

  • Mid-Level Software Developer

     ...utilizes data and technology. We are looking for a Mid-Level Software Developer to join our team and contribute to the design, development, and...  ...authentication, and role-based access control. Integrate APIs, databases, and other services to support functionality... 
    Contract work

    Redhorse Corporation

    Chantilly, Loudoun County, VA
    5 days ago

  • Mid-Level Software Engineer

     ...Maritime Engineering Operation (MEO). This candidate will design, develop, and support low-code solutions (Power Apps, Power Automate,...  ...using Flankspeed-approved connectors and patterns; implement secure APIs and middleware where required. Ensure compliance with... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Flexible hours
    3 days per week

    Serco

    Herndon, VA
    6 days ago

  • Mid-Level Software Engineer

     ...and investigative ecosystem. Key Responsibilities · Design, develop, test, and manage application development projects in support of...  ...Databases and SQL (MySQL, PostgreSQL, Microsoft SQL) REST API development and integration Git and other source control management... 
    Temporary work
    Immediate start

    AnaVation LLC

    Chantilly, Loudoun County, VA
    4 days ago

  • Mid-Level Software Developer

     ...application for the FBI. Today, CODIS is a client server application developed using Microsoft .NET that supports a database repository of DNA...  ...as Docker and Kubernetes. Familiarity with Swagger for API documentation and testing. Experience with Keycloak, RabbitMQ... 
    Work at office
    Local area

    Savant Financial Technologies

    Stafford, VA
    1 day ago

  • Director - Cloud Solutions Engineer - Integrated CloudConsulting (Location Flexible)

    $134k - $269k

     ...alsopossessstrong leadership traits andexhibita proventrack recordof developing, launching and operating cloudconsultingpractices.This...  ...ofcontainers (Docker, Kubernetes), microservices, serverless and API management. Experience with migration tooling andexecutionmethodologies... 
    Work experience placement
    Internship
    Work at office
    Local area
    Flexible hours

    RSM US LLP

    McLean, VA
    5 days ago

  • Oracle Developer

     ...Job Title Oracle Developer Education Bachelor's Degree Location Dahlgren, VA - US (Primary) Career Level Experienced...  ...Builder, Oracle Financial Analyzer, PL/ SQL, SQL*Plus, SQL*Loader, API's; XML Publisher; web services. - One (1) year of experience... 
    Full time

    Applied Technical Systems

    Dahlgren, VA
    4 days ago

  • Mobile App Engineer

     ...premier IT consulting firm delivering top-notch iOS & android Developer solutions to industry giants including Delta, Google, Apple, Spotify...  ...data storage using SQLite, Room. Familiarity with RESTful APIs for back-end integration. Comfortable with GIT, SVN, and... 
    Full time
    Contract work
    Relocation
    Relocation package

    Adidev Technologies Inc

    Richmond, VA
    4 days ago

  • Mobile Application Developer *

    $80k - $107k

     ...Mobile Application Developer * Hybrid Remote • Ashburn, VA ( Description Are you looking to take the next steps in your career as...  ...Requires experience in both Front-end Mobile and Back-end RESTFUL API development. Requires experience in development of JAVA, Node... 
    Contract work
    Remote work
    Flexible hours
    2 days per week

    Virtual Service Operations

    Ashburn, VA
    4 days ago

  • Mobile App Developer - Hybrid

     ...Job Description We are seeking an experienced Mobile App Developer to support a mission-critical DHS/CBP program focused on developing...  ...platforms, integrating mobile front-ends with secure RESTful APIs and cloud-backed services in a fast-paced Agile environment.... 
    Immediate start
    Flexible hours

    Novul Solutions

    Sterling, VA
    4 days ago