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  • Principal Engineer, API & MCP Platform

    $220k - $250k

     ...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... 
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    Work at office
    Remote work

    Hatchit Co

    Reston, VA
    18 hours ago

  • Salesforce Developer

    $140k - $150k

    Salesforce Developer (Active TS/SCI) ***As required by our governmental client, this position requires being a U.S. Citizen AND an active...  ...* Integrate Salesforce with enterprise systems using REST/SOAP APIs, event-driven patterns, platform events, and/or middleware (e.... 
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    Full time
    Contract work
    Local area

    Cherokee Federal

    Washington DC
    2 days ago

  • API/Java/Python Developer, SME TS Clearance REQUIRED

    $88.2k - $190.9k

    API/Java/Python Developer, SME TS Clearance REQUIRED Position Description Position Description CGI Federal has an exciting opportunity for an API/Java/Python Developer within our Intel sector advancing the national security mission through cutting edge technology... 
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    Local area
    Arlington, VA
    more than 2 months ago

  • Cloud Platform Engineer

    $108.01k - $183.61k

     ...environments can be created, updated, and audited consistently and without manual intervention. Build and maintain system integrations using APIs, SDKs, webhooks, and event streams, with proper secrets management, least-privilege scoping, error handling, and logging. Deploy... 
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    Full time
    Contract work
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    ICF

    Washington DC
    2 days ago

  • Sr. Software Engineer - .NET / APIS

     ...Server, with Kafka, RabbitMQ, or IMB MQ as a plus. You will work on APIs, microservices, and distributed systems, contributing to a...  ...performance software ecosystem.   You will collaborate with senior developers, DevOps engineers, and data experts in an Agile team... 
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    Full time
    Contract work
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    Securiport

    Reston, VA
    18 hours 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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    Full time
    Contract work
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    Securiport

    Reston, VA
    18 hours 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... 
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    Full time
    Contract work
    Remote work

    Securiport

    Reston, VA
    18 hours ago

  • Software Engineer - Backend

    $114k - $158k

     ...for web hosted services, you will work with the product team to develop and implement new features with developers and operators to help...  ...exclusively on backend architecture, including the design of robust APIs, the core server-side logic, and complex data management systems... 
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    Local area

    Two Six Technologies

    Arlington, VA
    1 day ago

  • UI developer

    $60k

     ...across industries and process oriented approach enables clients to develop cost effective and robust solutions. We strive to prove...  ...components   Integrated front-end applications with various types of APIs, and are comfortable with authentication and authorization (... 
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    Full time
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    Dellfor Technologies

    Washington DC
    18 hours ago

  • Principal Software Development Engineer

    $144.2k - $288.4k

     ...will join a high-performing architecture team responsible for developing a cloud-native platform designed to transform healthcare experiences...  ...cloud platforms, enterprise applications, microsevices, APIs, data analytics, networking, and large-scale systems. Good understanding... 
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    Hourly pay
    Full time
    Temporary work
    Local area
    Flexible hours

    CVS Health

    Washington DC
    11 hours agonew

  • Backend Engineer

    $121k - $165k

     ...Engineering squad. NOS is the software platform behind one of the largest nuclear buildouts in the United States, and this role builds the APIs, services, and data access the products run on. This is a hands-on engineering role. You will design and build backend services... 
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    Bi-weekly pay
    Full time

    The Nuclear Company

    Washington DC
    11 hours agonew

  • Principal Software Engineer, ArsenalOS (Forge Platform)

    $196k - $294k

     ...significantly impact the company today and in the future. We seek a developer who quickly understands distributed systems and creates...  ...traditional MES tooling. Standardize and unify Forge’s diverse APIs under a cohesive, scalable platform API strategy. Own platform... 
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    Anduril Industries

    Washington DC
    18 hours ago

  • Software Engineer Full Stack - Agentic Computational Engineering (ACE) Platform

    $120k - $180k

     ...design history in transparent and intuitive ways for engineers. Develop real-time, collaborative editing and review workflows (e.g., via...  ...with backend, platform, and domain team members to design APIs and data contracts that power the UI. Manage agentic teams of... 
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    Permanent employment
    Full time
    Contract work

    Voyager Technologies

    Washington DC
    18 hours ago

  • .NET Full Stack Developer - Senior - Top Secret required to apply - Wash DC + Hybrid

     ...As a .NET Full Stack Developer, you will play a critical role in the development and maintenance of web applications and services. You...  ...HTML5/CSS3 - Familiarity or experience with architecture styles/APIs (REST, RPC) - Develop and maintain web applications using the... 
    Suggested
    Full time

    Bow Wave Llc

    Washington DC
    18 hours ago

  • CMS Full Stack Developer (cloud certified)

     ...design thinking and digital transformation. As a Full Stack Developer  you will use your exceptional web development skills and experiences...  ...custom Drupal modules; ~2+ years of experience with REST API integrations; ~ Experience with SDLC and version control systems... 
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    Remote job
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    Insomniac Design

    Washington DC
    18 hours ago

  • Oracle Fusion Software Developer

    $129k - $171k

     ...ABOUT THE JOB: We are looking for an expert Oracle Integration Developer to join our Arsenal (Enterprise Systems) team. Your immediate...  ...experience building, securing, and consuming RESTful APIs and SOAP web services. ~ Excellent SQL skills and a solid understanding... 
    Full time
    Work experience placement
    Immediate start
    Relocation package

    Anduril Industries

    Washington DC
    18 hours ago

  • Lead Backend Software Engineer

    $185k - $215k

     ...needs into clear technical plans, reliable data models, stable API contracts, and delivered product outcomes. This person will partner...  ...reporting, asset management, and third-party vendor systems Develop and maintain ETL and data migration processes for imagery,... 
    Remote job
    Full time
    Temporary work

    Site Technologies

    Washington DC
    18 hours ago

  • Software Engineer

    $115k - $155k

     ...your exceptional technical fluency to a small but mighty team of developers and engineers. Join us as we build game-changing analytical...  ...developers to design and develop functional, performing, and complete APIs or GraphQL, and work tirelessly to define initiatives to... 
    Full time
    Worldwide
    Flexible hours
    Shift work

    Rhombus Power, Inc.

    Washington DC
    1 day ago

  • Senior Software Engineer

    $140k - $170k

     ...feasibility of scientific claims. What You’ll Do: * Build & Scale: Design and implement flexible microservices and high-performance APIs within a robust DevSecOps ecosystem. * Drive Deployment: Take technical ownership of features within a mature mission planning... 
    Full time
    Local area
    Flexible hours
    Night shift

    STR

    Arlington, VA
    11 hours agonew

  • Front End Developer

    $104k - $140k

     ...global future. Two Six Technologies is seeking a Front End Developer to work on multi-domain platforms serving critical national security...  ..., HTML, CSS ~ Experience working with or developing APIs Nice If you Have: Experience with Ember.js Experience... 
    Full time
    Contract work
    Local area

    Twosix Technologies

    Arlington, VA
    18 hours ago

  • Software Engineer - Senior Level (IE Platform Infrastructure)

     ...hosting providers on tenant-specific infrastructure requirements Develop and maintain operational processes, procedures, and...  ...Excellent analytical, troubleshooting, and communication skills ~ API or platform-related certifications ~ CompTIA Security+ or equivalent... 
    Full time
    Remote work
    Flexible hours

    Vivsoft Technologies

    Arlington, VA
    18 hours ago

  • Lead Full Stack Engineer- Secret Clearance Required

    $160k - $180k

     ...looking for an experienced Full Stack Engineers who is familiar developing web applications using React, Node.js and Postgres and who are...  ...Implement scalable, secure, and observable system architectures (APIs, services, data models, caching, integrations) Build high-... 
    Full time

    Sherpa 6, Inc.

    Washington DC
    18 hours ago

  • Full Stack Dev./ Software Developer / Software Engineer/ Application Developer

     ...Description TechOp Solutions is seeking a Software Developer / Software Engineer to support the U.S. Customs and Border Protection (...  ...Experience working with databases, SQL, data sources, reporting tools, APIs, automation workflows, or data transformation processes.... 
    Full time
    Work at office

    Techop Solutions International, Inc.

    Washington DC
    18 hours ago

  • Senior Software Engineer Platform Systems II

     ...Engineer to join a core platform engineering team responsible for developing and evolving foundational systems. This role is ideal for...  ...of work you may support include: Designing and implementing APIs and integration layers to enable interoperability across heterogeneous... 
    Full time
    Flexible hours

    Purple Squirrel Enterprises

    Washington DC
    18 hours ago

  • Senior ServiceNow Developer

    Sr. ServiceNow Developer-Long-Term Contract (Government) Position Title: Sr. ServiceNow Developer Work Arrangement: Onsite Worksite Address...  ...integrating ServiceNow with external systems via REST/SOAP APIs ITIL Foundation certification or equivalent ITSM process... 
    Long term contract
    Full time
    Work at office

    GoIntellects Inc.

    Washington DC
    1 day ago

  • Senior Frontend Software Engineer

     ...codebase while dramatically improving performance, reliability, and developer velocity \\ Setting the quality bar: architecture, testing...  ...at scale \\ ~ Hands\-on experience with advanced browser APIs, especially IndexedDB, caching strategies, and offline\-first... 
    Full time
    Work experience placement

    Talentry

    Washington DC
    18 hours ago

  • Full Stack Developer

    $150k - $200k

     ...About Us: SwarmInt is a defense AI startup developing computer vision and edge AI capabilities for military expeditionary forces with...  ...visualization from sensor feeds Implement backend services and APIs for data processing and integration Deploy containerized... 
    Full time

    Swarmint

    Arlington, VA
    18 hours ago

  • Full Stack Developer

     ...Description Northramp is seeking a Full Stack Developer to build, enhance, and support cloud-hosted enterprise applications for a...  ...Spring Boot, and Spring Cloud.  Build backend services, RESTful APIs, event-driven integrations, and modern front-end applications... 
    Remote job
    Full time
    Contract work
    Temporary work

    Northramp

    Washington DC
    18 hours ago

  • Salesforce Developer

    $100k - $130k

     ...Description We are seeking a talented and motivated Salesforce Developer to join our team and contribute to the development,...  ...such as Apex, Visualforce, Lightning Components, and Salesforce APIs. o Experience with Salesforce configuration tools like Process... 
    Full time
    Work at office
    Remote work
    Night shift

    Aramark

    Rockville, MD
    1 day ago

  • Marvelous FrontEnd Software Engineer (2+ years - Senior Level)

     ...Special Operations customers. Our engineer-led software teams develop technical solutions on an aggressive schedule across the DoW and...  ..., or SvelteExperience working on fullstack solutions with REST APIs and complex data Experience with SDLC tools, such as JIRA, Confluence... 
    Full time
    For subcontractor

    Black Cape

    Arlington, VA
    18 hours ago