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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
    3 days ago

  • Full Stack API Developer- TS/SCI with Polygraph

    $187k - $253k

     ...Full Stack API Developer 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 development, you'll make the end user's experience... 
    Suggested
    Temporary work
    Work experience placement
    Remote work
    Flexible hours

    General Dynamics

    Chantilly, Loudoun County, VA
    2 days ago

  • Backend/API Engineer

     ...Everforth ECS is seeking a Backend/API Engineer to work in the National Capital Region covering the Pentagon, Falls Church, and...  ...to production model artifacts within Unclassified networks. • Develops scalable serving frameworks using Kubernetes services, API gateways... 
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    Contract work

    ECS Limited

    Falls Church, 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
    4 days ago

  • Senior Backend Engineer - Java/Python, High-Impact APIs

    A technology services company is seeking a Backend Software Engineer to develop scalable backend services and RESTful APIs in Alexandria, VA. Candidates should have 8-12 years of experience in backend engineering, a Bachelor’s degree in Computer Science or related field... 
    Suggested

    COMFORT SYSTEMS

    Alexandria, VA
    17 hours 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
    4 days ago

  • Low-Latency Backend Engineer: Target Tracking & APIs

     ...candidate, active, timeout, split/merge) Build and maintain REST APIs with strict latency SLOs (sub-20ms update paths) Implement persistent storage using MySQL and long-term archival in ClickHouse Develop composite fingerprint matching algorithms with policy-weighted... 
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    Work visa

    Digital Global Systems Inc

    Mc Lean, VA
    17 hours ago

  • Remote Platform Backend Engineer for APIs & TTS

    $140k - $200k

    Clutch Canada is seeking a backend developer to design, develop, and maintain robust APIs from its remote setup. Ideal candidates should have proven experience in backend development, specifically using TypeScript and Node.js. You will oversee the API landscape ensuring... 
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    Remote job

    Clutch Canada

    Virginia Beach, VA
    3 days ago

  • Web Application / API Services Developer - Senior Level (FI3)

     ...Web Application / API Services Developer – Senior Level (FI3) Job Description: Are you opinionated on what it takes to create great software AND great teams? Are you interested in using your experience to help others grow in their career? Are you looking for... 
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    Flexible hours

    Trinity ES LLC

    Chantilly, Loudoun County, VA
    1 day ago

  • Java Full Stack Developer — APIs, UI & AI Initiatives

    Ampcus, Inc is seeking a skilled Java Full Stack Developer in McLean, VA, to enhance and maintain internal applications. The role primarily involves backend development with Java, Spring, REST, and AWS, alongside UI development using JavaScript, TypeScript, and Angular.... 
    Suggested

    Ampcus, Inc

    Mc Lean, VA
    3 days ago

  • Java API Developer

     ...Mid-Level API Java Developer Herndon, VA We are seeking a Mid-level API Java Developer, to join our team. Working at NT Concepts means that you are part of an innovative, agile company dedicated to solving the most critical challenges in National Security. We're... 
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    Local area
    Remote work
    Flexible hours

    NT Concepts

    Herndon, VA
    3 days ago

  • Front End Web Developer (TS/SCI)

    $95k - $105k

     ...Front End Web Developer | TS/SCI Quantico, VA Overview This role supports analysts and mission partners within the Marine Corps...  ...the work involves integrating front-end applications with REST APIs and back-end services to deliver seamless and reliable user... 
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    Temporary work
    Flexible hours

    Xcellent Technology

    Quantico, VA
    3 days ago

  • Front-End Web Developer

     ...effectively and efficiently. We're seeking an experienced Front-End Web Developer who will be part of a highly skilled, dedicated team focused on...  ..., forms, etc. Creating or modifying extremely minimal API endpoints in Java Reading/writing data from those endpoints... 
    Suggested
    Flexible hours

    Emprise

    Chesapeake, VA
    2 days ago

  • Mobile/Web Developer (.Net)

    $96.03k - $137.18k

     ...External Description Mobile/Web Developer (.Net) The Air Line Pilots Association, International (ALPA) , the largest airline pilot...  ...cross-browser compatibility/development, and RESTful Services and APIs are all a definite plus. Experience using automation and... 
    Suggested
    Work at office
    Local area
    Remote work
    Relocation
    Flexible hours

    Air Line Pilots Association, Int'l.

    McLean, VA
    1 day ago

  • Front End Web Developer at Mondo McLean, VA

    $90k - $110k

    Front End Web Developer job at Mondo. McLean, VA. Apply now: Front End Web Developer, location is Hybrid (McLean, VA). The start date is...  ...HTML, CSS, and JavaScript expertise Experience with RESTful APIs Familiarity with web animation frameworks (Motion, Anime.js,... 
    Suggested
    Permanent employment
    Local area
    Immediate start

    Itlearn360

    Mc Lean, VA
    2 days ago

  • Full-Stack Software Engineer II - Hybrid (UI & API)

    CarMax Business Services in Richmond is seeking a Full Stack Engineer II to design and build web applications that enhance customer service and collections. Candidates should have a Bachelor's degree in a related field, 3+ years of experience in full-stack development,... 

    CarMax Business Services

    Richmond, VA
    17 hours 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... 

    GlobalWaveSoftech

    Roanoke, VA
    17 hours ago

  • Junior Full-Stack Engineer: Cloud, APIs & Agile

    Pinnacle is seeking a Junior Full Stack Software Developer in Arlington, Virginia to work alongside the Lead Engineer and team members in designing and delivering software solutions in an Agile environment. The ideal candidate will develop both frontend and backend systems... 

    pinnacle

    Arlington, VA
    4 days ago

  • Full Stack Developer: Craft Scalable Web Apps & APIs

    TLA-LLC is looking for a skilled Full Stack Developer to join our team in McLean, Virginia. You will design, develop, and maintain robust web applications, ensuring optimal performance across platforms. The ideal candidate is proficient in front-end technologies like HTML... 

    TLA-LLC

    Mc Lean, VA
    4 days ago

  • .Net/Web Applications Developer

     ...Direct Client Req-.Net/Web Applications Developer (Min 10+yrs Exp)(HYBRID) Richmond, VA We are looking for a .Net/Web Applications...  ...applications and backend services using C#, ASP.NET MVC, Web API, Java Script, JQuery, Angular JS, Node.js, CSS and Blazor.... 
    Immediate start
    3 days per week

    Texas State Library and Archives Commision

    Richmond, VA
    4 days ago

  • Full Stack API Developer- TS/SCI with Polygraph

     ...expertise to protect our country from threats. 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... 
    Work experience placement

    General Dynamics Information Technology

    Chantilly, Loudoun County, VA
    16 days ago

  • Web Developer

     ...Responsibilities: Build highly usable, performant web services and web applications using AWS,...  ...that optimize conversion and growth. Develop functional and well-architected web...  ...methodologies. Top 3 must-haves: Web-based API development, coding in Node.js, understanding... 

    Integrated Resources

    Sterling, VA
    2 days ago

  • Frontend Developer

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

    Spatial Front

    Arlington, VA
    2 days ago

  • Front-End Developer

     ...Front-End Developer Location: On-site at the National Geospatial-Intelligence Agency (NGA) Clearance Required: Active TS/SCI Employment...  ...frontend components with backend services and RESTful APIs. Troubleshoot, debug, and optimize frontend code in a cloud-... 
    Full time

    Aerstone

    Springfield, VA
    18 days ago

  • Jr. Front End Developer

     ...Overview Jr. Front End Developer Vienna, VA Are you ready to enhance your skills...  ...develop, and maintain back-end services and APIs Collaborate with front-end developers...  ...field ~1+ years of experience with web design and web front-end development ~... 
    Work at office
    Work from home
    Home office

    Chenega MIOS

    Vienna, VA
    4 days ago

  • Front-End Engineer II

     ...and enhance single page applications that support internal systems and user-facing experiences. The role partners with front-end developers, API engineers, designers, and product owners, and contributes to component libraries, testing, accessibility, and code standards.... 
    Hourly pay
    Permanent employment
    Full time
    Local area
    Remote work

    Eliassen Group

    Richmond, VA
    4 days ago

  • Front End Developer, Mid

    $69.4k - $158k

     ...Job Number: R0241499 Front End Developer, Mid The Opportunity: As a full stack developer...  ...~4+ years of experience with Front-End web development, including TypeScript,...  ...Scrum, or Kanban ~ Knowledge of REST APIs ~ Top Secret clearance ~ HS diploma... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    Chantilly, Loudoun County, VA
    3 days ago

  • Front End Developer

     ...Front End Developer Nelson Intelligence Solutions is seeking a qualified Front End Developer...  ...contributions for communities with the web and mobile applications you create....  ...develop, and maintain back-end services and APIs Collaborate with front-end developers... 
    Full time

    Nelson Intelligence Solutions LLC

    Springfield, VA
    2 days ago

  • Front-End Engineer

     ...engineer to partner and build a Marketplace web application where users will learn about...  ...within and across Agile teams to design, develop, test, implement, and support technical solutions...  ...engineering and consuming RESTful APIs Knowledge of a version control system... 
    Long term contract

    Maintec Technologies

    McLean, VA
    17 hours ago

  • Senior Front-End Engineer - Agentic AI

    $112k - $179k

     ...experiences that make advanced platform capabilities accessible to developers, operators, and mission users. The ideal candidate will bring...  ...with backend, platform, and AI engineering teams to integrate APIs, real-time data, orchestration services, and agent execution... 
    Contract work
    Shift work

    Peraton

    Herndon, VA
    2 days ago