API Documentation & Developer Portals

Pro

Opemipo Jokotagba

Starting at

/hr

About this service

Summary

I specialize in API documentation and Developer Portal content that transforms complex systems into intuitive, self-serve experiences for developers. My work covers interactive API references, Postman collections, Quickstart guides, onboarding flows, code snippets, release notes, and contextual guides, all designed to enhance integration speed and reduce friction.

What sets me apart is my hands-on experience with modern API tooling (OpenAPI, Swagger, Mintlify, Readme, Stoplight, etc.) and a developer-first approach rooted in real-world use cases. I build searchable, responsive, and scalable developer portals that enable faster onboarding, fewer support tickets, and greater product adoption.

My deliverables extend beyond documentation; I create structured content ecosystems that include API playgrounds, change logs, platform migration guides, security documents, and developer feedback loops, all of which help technical teams scale and support a thriving developer community.

Process

Service Delivery Process

Providing high-quality API documentation requires a structured and efficient approach to ensure clarity, usability, and technical accuracy. Below is a summary of step-by-step breakdown of how I deliver this service from ideation to final delivery.

1. Discovery & Requirement Gathering

The process begins with a deep understanding of the product, audience, and business objectives.

2. Research & Information Collection

3. Documentation Planning & Structuring

4. Writing & Content Development

Writing developer-friendly API documentation with detailed endpoint descriptions, authentication methods, request/response samples, and error handling guidelines.

Creating integration guides, SDK usage documentation, and workflow diagrams to facilitate implementation.

5. Review & Technical Validation

6. Publishing & Deployment

7. Maintenance & Continuous Improvement

Final Outcome & Deliverables

At the end of the project, the client receives:

✅ Fully structured and clear API documentation with endpoint references and usage guides. ✅ User-friendly integration guides and SDK documentation for seamless developer onboarding. ✅ Well-organized, version-controlled content for easy updates and scalability. ✅ Improved product adoption and reduced support inquiries through high-quality, self-service documentation.

By following this structured approach, I ensure that documentation is not only well-written but also highly functional, accessible, and valuable for the end users.

What's included

API Documentation
– Complete API Reference Documentation: Endpoint descriptions, request/response samples, authentication methods, and error codes. – Integration Guides & SDK Documentation: Step-by-step implementation guides for developers using APIs and SDKs. – Use-Case & Best Practices Guides: Real-world scenarios and recommendations for optimizing API usage. – Version-Controlled API Docs: Structured documentation updates to reflect API changes across different versions.
Developer Portals
– Interactive API Playground: API testing environments like Swagger, Postman collections, or OpenAPI specifications. – Code Snippets & Sample Apps: Ready-to-run examples in popular languages (Python, JS, etc.) showcasing real use cases. – Migration & Versioning Guides: Supporting content for transitioning between API versions or platforms.

Example projects

End-to-End Developer Documentation & Support System

Complexity to Clarity: Qore’s Developer Documentation

Alchemy Developer Documentation: Simplified Web3 Integration

Recommendations

(5.0)

Segun Olumide • Innatera

Client • May 31, 2025

Recommended

I had the pleasure of working with Opemipo at Sterling, where he served as my Tech Writer Lead. His leadership was truly exceptional. He fostered collaboration, provided clear guidance, and consistently elevated the quality of our team’s work. Opemipo’s ability to balance technical precision with approachable communication made him an invaluable mentor. Any team would be lucky to have him, honestly!

Skills and tools

Article Writer

Software Engineer

Technical Writer