Secure API Design

REST API Development

Production-grade, documented, and secured RESTful APIs powering web and mobile applications.

LaravelPythonDjangoJWTOAuth2OpenAPIPostman

Overview

Project Summary

Hassan has designed and delivered multiple production REST APIs serving as the backbone for web frontends, mobile applications, and third-party integrations.

Capabilities

What the System Does

Authentication & Authorisation

JWT with refresh token rotation, OAuth2 flows, API key management, and role-scoped endpoints.

Auto-Generated Documentation

OpenAPI 3.0 specifications with interactive Swagger UI and Postman collection exports.

Security Hardening

Rate limiting, input sanitisation, SQL injection prevention, CORS policies, and OWASP compliance.

Scalable Architecture

Stateless design with Redis caching, queue workers, and horizontal scaling support.

Versioned Endpoints

API versioning strategy ensuring backwards compatibility across client application versions.

Testing & Monitoring

Unit and integration test coverage, health check endpoints, and request logging dashboards.

Results

Delivered Outcomes

<120ms

Average API response time

100%

Postman-tested endpoint coverage

Security incidents post-deployment

Client integrations supported per API

Client Feedback

Recommendation

We needed a rock-solid API to power our mobile app and Hassan delivered exactly that.

Michael Odhiambo

CTO

Tech Startup (Confidential)

Client identity and full company name withheld per confidentiality agreement.