API Integration Engineer

TechDigital Group; St. Louis (MO); On-site; USD 70,000 - 110,000; Full time

Job summary

TechDigital Group in St. Louis is seeking a skilled API Developer to design, develop, and maintain RESTful and SOAP APIs for various integrations. You will lead API integration projects, analyze business requirements, and ensure compliance with security standards. Responsibilities include developing API contracts, monitoring performance, and mentoring junior developers. This role offers an opportunity to work collaboratively with product managers and technical teams to deliver scalable solutions.

Responsibilities

• Design, develop, and maintain RESTful and/or SOAP APIs.
• Lead API integration projects with third-party vendors.
• Analyze business requirements for scalable integration solutions.
• Develop and manage API contracts and documentation.
• Implement secure authentication mechanisms using OAuth2, JWT.
• Handle data transformations and orchestration.
• Monitor API performance and troubleshoot issues.
• Enforce API best practices including versioning and logging.
• Collaborate with product managers and engineering teams.
• Mentor junior developers and conduct code reviews.
• Ensure compliance with security and data privacy standards.

Job description

• 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.