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Senior Integration Developer - Onsite

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

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Washington, DC, United States
Posted
23 hours ago
DjangoFastAPIFlaskAzureJWTJavaScriptPythonTypeScript

Job Description

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

Job Description

  • Design end-to-end system architecture spanning frontend, backend, integration layers, and cloud infrastructure, translating requirements into scalable Azure-based solutions
  • Define technical standards, Integration design patterns, and best practices to guide the development team
  • Create and maintain architecture diagrams, technical specifications, and design documents, including data mapping and configuration details
  • 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, and mentor junior team members toward successful delivery

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