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  • Senior .NET Full-Stack Developer React/API Expert

     ...A technology solutions firm is seeking a motivated .NET Full Stack Developer in Bethesda, MD. The role requires expertise in .NET technologies, modern JavaScript frameworks, and RESTful APIs. Candidates should have over 5 years of experience, strong collaboration skills... 
    Suggested

    The Association of Technology Management and Applied Enginee...

    Bethesda, MD
    2 days ago

  • TS/SCI Cleared Backend Engineer Impactful API & Cloud

    $145k - $190k

     ...technology solutions provider is seeking a Backend Support Software Developer for a fully onsite role. This position involves enhancing...  ...and C#/Java, along with strong troubleshooting skills for REST APIs and databases. A Top Secret clearance is required for this role... 
    Suggested

    Medium

    Springfield, VA
    1 day ago

  • Mission Platform Engineer - Kubernetes & APIs (Washington)

     ...seeking a Mission Manager to empower US Government customers with robust software solutions. This role focuses on building elegant APIs and managing Kubernetes-based infrastructure to support critical missions. You'll work alongside a diverse team, driving impactful changes... 
    Suggested
    Full time

    Palantir Technologies

    Washington DC
    3 days ago

  • Full Stack Developer: Cloud, APIs & UI/UX Impact

    $120k - $165k

     ...A leading technology services provider is seeking a Full Stack Software Developer to join their Arlington office or work remotely. The role involves creating innovative solutions, developing front-end experiences, and maintaining back-end services. Candidates should have... 
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    Work at office
    Remote work

    ECS Limited

    Arlington, VA
    4 days ago

  • Backend Developer (Kotlin/Java, Android APIs)

    $40 per hour

     ...Backend Developer (Kotlin/Java, Android APIs) DataAnnotation is looking for a Backend Developer (Kotlin/Java, Android APIs) to join our team and contribute to developing cutting?edge AI systems. You can work remotely from the US, Canada, UK, Ireland, Australia, and... 
    Suggested
    Hourly pay
    Remote work
    Flexible hours

    DataAnnotation

    Washington DC
    2 days ago

  • Python Lead Developer: AI-Driven Access Control & APIs

     ...professional proficient in Python programming and access control. The ideal candidate will have at least 5 years of experience in developing API connectors and integrating AI into applications, along with a solid understanding of cloud technologies and DevOps practices.... 
    Suggested

    TechDigital Group

    Washington DC
    1 day ago

  • Director, Product Management, Developer Experience - API Platforms (McLean)

    $205.4k - $234.4k

     ...Overview Director, Product Management, Developer Experience - API Platforms Capital One is a high-tech company, a scientific laboratory, and a nationally recognized brand all-in-one, reaching tens of millions of consumers. As a Developer Experiences organization... 
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    Full time
    Part time
    Local area

    Capital One National Association

    McLean, VA
    3 days ago

  • Senior API / Microservices Developer

    $131.75k - $178.25k

     ...API / Microservices Developer Our 100% remote agile development team is looking for an API / Microservices Developer to help us deliver top-quality IT Modernization for our Environmental Protection Agency (EPA) customers. You will work directly with our government customers... 
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    Temporary work
    For contractors
    Remote work
    Work from home
    Flexible hours

    General Dynamics

    Falls Church, VA
    2 days ago

  • Senior Software Engineer, Backend API

    $171k - $190k

     ...time contextual information on the web, mobile, and through our APIs. The team integrates public safety systems of all sorts,...  ...vehicle hotlists, and other alerts as well as contributing to our developer hub with a growing list of APIs for developers. The Skillset... 
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    Work at office
    Work from home
    Home office
    Flexible hours

    Flock Safety

    Washington DC
    2 days ago

  • Sr Python API Developer / McLean VA, 12+ Months Contract

     ...Python Developer Client is building a culture based on modern software delivery practices to support the secondary mortgage market through rapid technology and best practice innovation. Position Overview: Financial Engineering team is seeking Python Developers for a... 
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    Contract work

    Staffing the Universe

    Falls Church, VA
    2 days ago

  • Application Developer (TS/SCI w/ Poly) Geospatial Data & API D

     ...Application Developer (TS/SCI w/ Poly) Geospatial Data & API Development Location: Onsite Herndon, VA & Springfield, VA (SCIF access required) Clearance: TS/SCI with CI Polygraph (Must be active and customer-verified) Duration: 2 Jan 2026 31 Jul 2026 (Extension... 
    Suggested
    Full time

    ClearanceJobs

    Springfield, VA
    3 days ago

  • Mobile UI Developer Sr.

     ...Mobile UI Developer Sr. Mobile UI Developer Sr. Location: McLean, VA / Richmond, VA / Chicago, IL (Hybrid) Openings: 8 Job description...  ..., having expertise in Swift/Objective-C, XCode, Networking /API Integration, Test Automation, Git/ version control and Agile... 
    Suggested

    RIT Solutions

    Falls Church, VA
    3 days ago

  • Senior .NET Backend Engineer - Billing Platform *Hybrid*

    $100k - $215k

     ...prioritize technical challenges that may pose risks to business Develop solutions to address these issues efficiently, ensuring smooth...  ...Develop and optimize services using SQL Server, Postgres, REST APIs, microservices ~ Work with Azure, Docker, Kubernetes, and... 
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    Hourly pay
    Full time
    Work experience placement
    Local area
    Remote work
    Flexible hours

    GEICO

    Falls Church, VA
    2 days ago

  • Mobile App Developer

     ...here as they become available. FRDA is seeking a Mobile App Developer to build advanced mobile applications that integrate AI/ML models...  ..., or keychain/keystore). Familiarity with RESTful APIs, WebSocket communication, and JSON serialization. Working knowledge... 
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    Local area
    Remote work

    Foreign Resource Development Associates, LLC

    Arlington, VA
    2 days ago

  • UI Developer

     ...UI Developer At Bcore, our strength comes from how we deliver impact to the mission. Whether it's architecting critical IT solutions...  ...package managers (Webpack, npm, Yarn). Knowledge of RESTful APIs and asynchronous programming. Desired Qualifications... 
    Suggested

    ClearanceJobs

    Falls Church, VA
    4 days ago

  • Front End Web and Mobile Developer

     ...TechFlow Inc. is seeking an experienced Front End Web and Mobile Developer to join our Platform Services Division in support of a large...  .... Integrate front?end and mobile applications with RESTful APIs and data services from CMMS and other enterprise systems. Develop... 
    Contract work
    Temporary work
    Work at office
    Immediate start
    Remote work

    TechFlow

    Arlington, VA
    2 days ago

  • Senior Software Engineer (C#/.NET)

     ...with the best resources available, we provide an invaluable edge in real estate. Responsibilities Build large, distributed, API-driven systems accessed by millions of users each month Produce bullet-proof code that is robust, efficient and maintainable; our... 
    Full time
    Work at office
    Work from home

    CoStar Group

    Arlington, VA
    2 days ago

  • Senior Software Engineer (Enterprise Data Privacy Platform)

    $125k - $155k

     ...regulations, while providing unified consent and preference management APIs for efficient data handling across multiple channels. With...  ...issues ~ Proven track record in mentoring or guiding other developers ~ Familiarity with scalable system design and architecture... 
    Work at office
    Local area
    Immediate start
    Relocation package
    2 days per week
    3 days per week

    Lavendo

    Falls Church, VA
    3 days ago

  • Platform Security Engineer with Security Clearance

     ...assessments of network and platform components, and mitigate risks. Develop security automation that meets industry best practices Assist...  ...or Go programming language Experience working with RESTful APIs to automate security assessments and mitigation processes Experience... 

    DCI Solutions

    Falls Church, VA
    2 days ago

  • Senior .NET Web Apps Developer Hybrid, APIs

     ...A technology leader in political software is seeking a Senior Web Applications Developer in Washington, DC. The successful candidate will be responsible for designing, developing, and maintaining software solutions using the Microsoft.NET framework, with a focus on ASP... 
    Casual work

    Aristotle

    Washington DC
    1 day ago

  • Full Stack Developer (Java & .NET)

     ...Full Stack Developer (Java & .NET) Job Locations: US-VA Job ID: 2025-3614 Category: Information Technology Type: Full Time...  ...Framework, Java, and Spring Boot Design and implement RESTful APIs and microservices for integration across enterprise systems... 
    Full time
    Local area
    Immediate start

    NetImpact Strategies

    Falls Church, VA
    4 days ago

  • Lead Application Engineer

     ...analysis, to stakeholder management, to creative problem solving, our developers combine their skills and leverage Appian's technology to tackle...  ..., planning sessions, and sprints) ~ Knowledge on leveraging APIs, database design/data modeling, SQL skills (writing queries,... 
    Work at office
    Local area
    Immediate start

    Appian

    Falls Church, VA
    10 hours ago

  • Senior Java Backend Engineer

     ...A leading software company in Arlington, Virginia is seeking an experienced Java backend developer. The role involves developing and maintaining RESTful APIs, optimizing database operations, and writing scalable backend code in Core Java. The ideal candidate has over... 

    JanBask CRM Software

    Arlington, VA
    2 days ago

  • Salesforce Developer

     ...datasets (50GB+) ~ Intimately familiar with Apex Web Service API ~ Thorough understanding of SFDC governor limits and best practice...  ...success. Position Requirements Responsible for developing in Visualforce, Apex and other technologies to build customized... 
    Temporary work

    JanBask CRM Software

    Arlington, VA
    2 days ago

  • Software Security Engineer IV

     ...engineers and architects across product teams to help design and develop solutions satisfying security requirements. You will interact...  ...AWS developer environment including, but not limited to, Lambda, API Gateway, DynamoDB, S3, CloudWatch. ~ Implementation of modern... 
    Full time
    Work experience placement
    Flexible hours

    Airlines Reporting Corporation

    Arlington, VA
    19 hours ago

  • Lead / Full Stack Developer

     ...motivated candidate to join our talented Team. Lead / Full Stack Developer Location: McLean, VA Job Description We are looking...  ...and qualifications Skillset: Full Stack, Python, Golang, API dev, Vue JS, Angular, Lambda, Java, AWS. Data Pipeline: ETL... 
    Relocation package

    Ampcus

    Falls Church, VA
    3 days ago

  • .NET/React Developer

    $103.8k - $218.1k

     ...Opportunity The CACI team is looking to add a Senior .NET/React Developer to their growing software development contract with the...  ...using React, integrating them with .NET back-end services and APIs Qualifications Required ~ Bachelors Degree in Computer... 
    Full time
    Contract work
    Work experience placement
    Local area
    Immediate start
    Flexible hours

    CACi

    Arlington, VA
    4 days ago

  • Java Backend Developer

     ...Develop & Maintain RESTful APIs using Spring Boot & Spring MVC Implemented and optimized database operations with Hibernate ORM & JPA Write clean, efficient, and scalable backend code in Core Java (Java 8+) Manage and optimize SQL databases (MySQL, PostgreSQL)... 

    JanBask CRM Software

    Arlington, VA
    5 days ago

  • Java Full Stack Developer

     ...Watch and more. Java with Microservice Mongo DB experience. Design, develop, and deploy web applications using AWS services such as EC2, S3,...  ...and maintain serverless architectures using AWS services such as API Gateway, CloudFormation, and CloudWatch. Create and...... 

    Syntricate Technologies

    Falls Church, VA
    4 days ago

  • Lead Principal Software Engineer

     ...web technologies, including HTML, CSS, JavaScript, and RESTful APIs Experience with database design and management (e.g., PostgreSQL...  ...to open-source projects or a strong presence in the developer community Previous fintech experience with understanding of... 
    Flexible hours

    Allocore

    Arlington, VA
    1 day ago