Unknown Company

API Integration Engineer

st. louis, mo • Posted 4 days ago
Onsite Contract IT & Technology

  • Design, develop, and maintain RESTful and/or SOAP APIs for internal and external integrations.
  • Lead end-to-end API integration projects with third-party vendors, partners, and internal platforms.
  • Analyze business requirements and translate them into scalable integration solutions.
  • Develop and manage API contracts, specifications (OpenAPI/Swagger), and documentation.
  • Implement secure authentication and authorization mechanisms (OAuth2, JWT, API Keys).
  • Handle data transformations, mappings, and orchestration across systems.
  • Monitor API performance, reliability, and scalability; troubleshoot integration issues.
  • Enforce API best practices including versioning, error handling, throttling, and logging.
  • Collaborate with product managers, architects, DevOps, and QA teams.
  • Mentor junior developers and conduct code reviews.
  • Ensure compliance with security, data privacy, and regulatory standards.

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