API Integration Intern — Shape Secure Platform Services

Intercontinental Exchange Holdings, Inc.; Jacksonville (FL); On-site; USD 25,000 - 39,000; Full time

Job summary

Intercontinental Exchange, Inc. in Jacksonville invites a motivated intern to work with our engineering teams on core platform services that support internal and external users relying on secure, documented integrations.

The internship emphasizes hands-on development, testing, and collaboration across finance, technology, and mortgage domains. You will assist in API design, testing, runbooks, and documentation, while gaining exposure to REST APIs, JSON, OAuth, and security best practices through

Qualifications

• Must be currently enrolled in a degree program and advancing to junior year.
• Familiarity with REST APIs, JSON, and HTTP fundamentals.
• Experience with API tools such as ReadyAPI, Postman, or Swagger/OpenAPI.
• Basic knowledge of SQL and API security concepts (OAuth, tokens, rate limiting).
• Strong problem-solving skills and attention to detail.

Responsibilities

• Support development, testing, and enhancement of API services across the mortgage servicing platform.
• Assist with API design, versioning, policies, and developer-facing materials.
• Write and maintain unit, integration, and automated API tests.
• Help investigate defects, review logs and monitoring data, and participate in sprint ceremonies.
• Prepare technical documentation such as runbooks and API usage guides; deliver a final project presentation.

Skills

REST APIs

JSON

HTTP fundamentals

Problem solving

Education

Enrolled in accredited university (undergrad)

Tools

ReadyAPI

Postman

Swagger/OpenAPI

Job description

Intercontinental Exchange, Inc. in Jacksonville invites a motivated intern to work with our engineering teams on core platform services that support internal and external users relying on secure, documented integrations.

The internship emphasizes hands-on development, testing, and collaboration across finance, technology, and mortgage domains. You will assist in API design, testing, runbooks, and documentation, while gaining exposure to REST APIs, JSON, OAuth, and security best practices through