REST APIs jobs in McLean, VA

Remote or Hybrid in Frisco, Texas

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Today

Windchill REST API Developer Location: Frisco, TX 75033 or Remote Employment Type: W2 Contract, 12+ Months Sponsorship: Not available. C2C arrangements are not accepted. Job Description Talent Groups is seeking an experienced Windchill REST API Developers to support REST API development, application integrations, and enterprise Product Lifecycle Management (PLM) initiatives. This role is ideal for developers with hands on PTC Windchill experience and a strong background in REST API development,

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Contract

65 - 75

Software Engineer 1 - (Python, AI, REST APIs)

Columbia, Maryland

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Today

Software Engineer 1 - (Python, AI, REST APIs) Clearance: TS/SCI - Polygraph required Position ID: 20-16-064-SWE1 Location: Columbia, Maryland Description: We are seeking a Software Engineer I with a focus on AI to support analysts and operators by developing and refining the software that integrates AI capabilities into CNO workflows. In this role, you will integrate diverse data sources and external APIs with MCP tools to enable seamless, scalable system interoperability. You will work under

Full-time

USD 169,000.00 - 207,000.00 per year

Senior MuleSoft Developer

Hybrid in Bethesda, Maryland

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14d ago

Strong hands-on experience with Mule 4 and Anypoint Platform. Strong knowledge of DataWeave 2.0. Experience developing REST APIs and SOAP web services. Strong understanding of API-led Connectivity. Experience with System APIs, Process APIs, and Experience APIs. Experience with RAML / OpenAPI. Hands-on experience with Anypoint Studio, API Manager, Runtime Manager, and Anypoint Exchange. Experience with CloudHub or CloudHub 2.0. Strong experience with MuleSoft connectors such as HTTP, Database, Sa

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Contract, Third Party

Depends on Experience

Java Lead Engineer

Bethesda, Maryland

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Today

Role : Lead Engineer Location :Bethesda , MD Hybrid 2-3 days Client :Hospitality Client The Lead Engineer will lead the replat forming of a mission-critical API platform from a legacy framework to Java Spring Boot WebFlux using AI-assisted development. The platform serves customer-facing web and mobile experiences and high-impact internal applications, so reliability, security and backward compatibility are non-negotiable.The role also helps establish AI-assisted development as a repeatable pra

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Contract, Third Party

Senior Python / AWS Developer - W2 Only

McLean, Virginia

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8d ago

Senior Python / AWS DeveloperIntroduction:We are seeking an experienced Python Developer to design, build, and scale cloud-native applications, microservices, and system integrations. The candidate will collaborate closely with engineering teams on API architecture, cloud infrastructure, and automated workflows. Responsibilities:Design, develop, and maintain high-performance microservices and RESTful APIs using Python FastAPI.Deploy, manage, and optimize scalable application environments on AWS

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Contract

Depends on Experience

Senior Software Engineer – Java / AWS

Tysons, Virginia

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17d ago

We are looking for a Senior Software Engineer with strong experience in Java, AWS, microservices, and modern cloud-based application development. The ideal candidate will be hands-on technically and capable of contributing to architecture, system design, performance optimization, and production support. ResponsibilitiesDesign, develop, and support scalable enterprise applications and distributed systems.Build and enhance cloud-native solutions using AWS services.Develop RESTful APIs and microser

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Contract, Third Party

Depends on Experience

IT Application Solutions Architect Senior - Full Stack

Hybrid in Washington, District of Columbia

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23d ago

Title:IT Application Solutions Architect Senior - Full StackLocation: Washington, DC (Hybrid) (There can be F2F interview)Hire Type: ContractJob Description:Highly Proficient in Angular. Strong programming experience in Java and Python.Extensive experience in developing Spring Boot microservices and RESTful APIs.Hands-on expertise with AWS services: AWS Lambda, Amazon DynamoDB, Amazon ECS (Elastic Container Service) Knowledge of AWS services such as API Gateway, SQS, SNS, VPC, Event Bridge and S

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Contract

Depends on Experience

Senior Java Software Engineer

Hybrid in McLean, Virginia

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Today

Varmoda is seeking an experienced Senior Java Software Engineer to support U.S. federal government projects. The ideal candidate will bring strong hands-on Java development experience, expertise in enterprise application development, and prior experience supporting federal government clients or programs. The successful candidate will design, develop, test, and maintain secure, scalable, and high-performance enterprise applications while collaborating with technical teams and federal stakeholders

Contract

100000 - 120000

AI Solution Engineer (17735)

Hybrid in Herndon, Virginia

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8d ago

Baer is looking for AI Solution Engineer for a 12-month Federal Project located in Herndon, VA Title: AI Solution Engineer Location: Hybrid - Herndon, VA 3 days on site. Duration: 12 months OR 12 Months contract to hire. Rate: All-inclusive- Locals ONLY Alignment: W2 or C2C Overview AI Solution Engineer is a dual-hat role combining AI consulting and hands-on engineering. Partner with Lines of Business (LOBs) to identify high-value AI opportunities, design solutions, and build rapid POCs using

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Contract

Depends on Experience

Solution Architect (Full Stack)

Hybrid in Washington, District of Columbia

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Today

Job Title: Solution Architect (Full Stack) Location: Washington, DC/Onsite Interview Duration: 12+ Months Minimum Qualifications: Highly Proficient in Angular. Strong programming experience in Java and Python. Extensive experience in developing Spring Boot microservices and RESTful APIs. Hands-on expertise with AWS services: AWS Lambda, Amazon DynamoDB, Amazon ECS (Elastic Container Service) Experience on AWS services such as API Gateway, SQS, SNS, VPC, Event Bridge and Secrets Manager Experien

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Third Party, Contract

$60+

- Full Stack Developer IV (Java) - DC, GA, TX, WA (Hybrid)

Hybrid in Washington, District of Columbia

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16d ago

local to DC, GA, TX, WA Position: Full Stack Developer IV Java Location: DC; GA; TX; WA (Hybrid) Eligibility: U.S. Citizen residing in the U.S.; Ability to obtain Public Trust Job Summary: Seeking a senior Full Stack Java Developer to design, develop, test, and maintain secure, scalable enterprise web applications using Java and the Spring ecosystem. Key Responsibilities: Develop full-stack applications using Java, Spring Boot, Spring MVC, and Spring Security. Build RESTful

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Contract, Third Party

Depends on Experience

- Full Stack Developer IV - .NET - DC, GA, TX, WA (Hybrid)

Hybrid in Washington, District of Columbia

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16d ago

local to DC, GA, TX, WA Position: Full Stack Developer IV .NET Location: DC; GA; TX; WA (Hybrid) Eligibility: U.S. Citizen residing in the U.S.; ability to obtain Public Trust Job Summary: Seeking a senior Full Stack Developer with strong experience in C#, .NET, and ASP.NET Core to design, develop, test, and maintain secure, scalable web applications. Key Responsibilities: Develop full-stack applications using C#, .NET, ASP.NET Core, and REST APIs. Build business logic and da

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Contract, Third Party

Depends on Experience

Junior .NET Developer

Hybrid in Dale City, Virginia

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Today

Title: Junior .NET Developer Location: Charlotte, NC, onsite 4 days a week Duration: 6+ months with extension Compensation: $35-$39/hr Work Requirements: U.S. Citizen, GC Holders, or Authorized to Work in the U.S. We're seeking a motivated, hands-on Integration & Data Engineer I to join our technology team supporting our client. This is an excellent opportunity for an early-career developer looking to grow their skills in data engineering, software development, and cloud technologies. Working al

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Contract

Depends on Experience

Senior Java Developer

Hybrid in Bethesda, Maryland

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9d ago

PLEASE NOTE: It is Hybrid Position at Bethesda, Maryland Should be able to visit and meet the client in Bethesda, MD. ROLE SUMNMARY: We are seeking a Senior Java Developer to design, build, and maintain enterprise applications.This role will lead technical implementation, mentor developers, and work with product, QA, and DevOps teams to deliver reliable, secure software. KEY RESPONSIBILITIES: Design and develop Java applications, REST APIs, and backend services using Spring Boot. Translate busin

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Full-time

Depends on Experience

Senior Application Developer (AWS/Python) onsite

Washington, District of Columbia

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22d ago

Senior Application Developer (AWS/Python) Washington, DC 100% Onsite Per Federal contract U.S. citizenship is required Must be able to obtain Public Trust clearance W2 or C2C Application Deadline: 10/7 Core Responsibilities: Development & Infrastructure: Develop and maintain Python-based microservices and AWS infrastructure using CDK Model complex business workflows with AWS Step Functions Build containerized applications with RESTful APIs Implement comprehensive logging, monitoring, and

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Contract

Depends on Experience

Cleared - Lead UI Software Engineer

Reston, Virginia

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11d ago

ACTIVE SECRET OR TOP SECRET CLEARANCE REQUIREDThe OpportunityStaffRight Associates is recruiting for a premier Aerospace & Defense client based in the Reston, Virginia area. The client needs a Lead UI Software Engineer to head a five-person team of developers and designers. The team builds advanced browser-based platforms for simulation and optimization software that recreates intricate physical systems. The client's engineers work in small, tight-knit groups alongside research scientists and fe

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Full-time

150000 - 175000

Java Tech Lead

McLean, Virginia

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Today

Java Tech Lead 14+ Years of Experience Responsibilities: * Provide technical solution * Design and develop scalable backend services and RESTful APIs * Work on frontend integration with Angular * Write and maintain automated test suites (UI, API & BDD) * Drive TDD/BDD practices across the team * Participate in code reviews, technical design, and sprint planning * Troubleshoot and resolve production issues Required Skills: * 15+ years of Java development and technical lead experience * Strong e

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Contract, Third Party

Depends on Experience

TS/SCI Cleared Software Engineer

Reston, Virginia

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8d ago

Citizenship Required - Candidates Must Have An Active TS/SCI ClearanceThe OpportunityStaffRight Associates is sourcing for a premier defense and national security innovation client to lead the search for an exceptional Software Engineer specializing in simulation, optimization, and decision-support systems. This high-impact role empowers you to architect mission-critical software solutions that translate advanced theoretical research into deployable, real-world tools for key decision-makers. Ope

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Full-time

135000 - 175000

Mid-Level Backend Software Engineer

Gaithersburg, Maryland

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28d ago

Job Title: Mid-Level Backend Software Engineer-TS/SCI Location: Gaithersburg, MD Type: Contract To Hire Compensation: Work Model: Onsite Hours: 40.0 Security Clearance: Top Secret/SCI Overview Active TS/SCI Security Clearance requiredwith the ability to successfully pass a Polygraph Responsibilities Design, develop, test, and maintain backend application components using Java or Python Develop and maintain RESTful services to support application functionality and system integrations Apply objec

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Contract

$60

Java Backend Engineer - Onsite Interview required

Hybrid in Vienna, Virginia

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20d ago

Job Title: Java Backend Engineer Location: Vienna,VA ONSITE INTERVIEW REQUIRED Type: Contract, long term expected Compensation:W-2 Work Model: Hybrid 3 days onsite and 2 days remote Hours: 40 hours a week Responsibilities Design, build, integrate, and maintain secure backend services and APIs supporting mobile, web, enterprise, and partner systems. Design for performance, reliability, resiliency, observability, quality, and responsiveness. Collaborate with cross-functional teams to define, de

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Contract

$70

REST APIs jobs in McLean, VA, USA