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Integration Developer - Onsite - W2 Only

MSYS Inc.Washington, DC🇺🇸United StatesPosted Sep 28, 2026

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Washington, DC, United States
Posted
Yesterday
DjangoFastAPIFlaskSOAPAWSSAMLAzureGoogle CloudGraphQLJWTJavaJavaScriptPythonTypeScript

Job Description

Title:Integration Developer - Onsite - W2 Only
Location:Washington, DC
Length:Long term
Restriction:w2 only
Description:

Job Description

Build backend services and APIs using Python (e.g., FastAPI, Django, Flask), Javascript, Azure, Typescript or using enterprise integration tools like MuleSoft, Apigee, Kong, Workato, BizTalk.

  • Design, build, and integrate RESTful APIs — connecting third-party and internal systems for reliable, consistent data exchange
  • Implement API security (OAuth2, JWT, API keys), versioning, rate limiting, and robust error handling
  • Design and implement asynchronous processing using message queues and event streaming.
  • Manage the full software development lifecycle (SDLC), including developing, testing, and deploying integration processes across Test, UAT, and Production environments
  • Monitor integration performance, proactively troubleshoot issues, and provide expert-level post-deployment support
  • Collaborate with cross-functional teams to optimize data flows and ensure adherence to integration best practices
  • Take ownership of assigned projects, manage stakeholder expectations

Required Qualifications

  • Bachelor's degree in computer science, software engineering, information technology or a related field.
  • 3+ years of hands-on experience with one or more modern programming languages (e.g., Java, Python, JavaScript/TypeScript) for building backend services and APIs
  • Strong understanding of integration patterns and architectural styles (e.g., point-to-point, hub-and-spoke, event-driven, pub/sub, ESB, iPaaS)
  • Hands-on experience with API design and development, including RESTful services, SOAP, and/or GraphQL
  • Working knowledge of API security standards and protocols (OAuth2, JWT, SAML, API keys) and best practices for versioning, throttling, and error handling
  • Experience with at least one major cloud platform (Azure, AWS, or Google Cloud Platform), including cloud-native architecture and deployment practices
  • Solid understanding of data mapping, transformation, and orchestration techniques across heterogeneous systems
  • Experience managing the full software development lifecycle (SDLC), including CI/CD pipelines, testing strategies, and deployment across multiple

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