API Development & Integration | Secure, Fast & Scalable

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About this service

Summary

I design and develop custom APIs and integrate third-party services to make your systems work seamlessly together. Whether it’s building secure REST or GraphQL APIs from scratch or connecting your app to payment gateways, CRMs, and other services, I ensure smooth, efficient, and scalable integrations. My focus on clean architecture and security ensures your API runs reliably under any workload.

What's included

  • Custom API Development

    A tailored REST or GraphQL API built to your exact business requirements, with secure endpoints and clear documentation.

  • Third-Party API Integration

    Seamless integration with services like Stripe, PayPal, Google APIs, or custom vendor APIs.

  • Authentication & Security Setup

    Implementation of secure authentication methods such as OAuth 2.0, JWT, and API key management.

  • Data Mapping & Transformation

    Custom logic to format, validate, and process data between different systems for smooth interoperability.

  • Error Handling & Logging

    Robust error tracking and logging mechanisms to monitor API performance and troubleshoot issues quickly.

  • Testing & Quality Assurance

    Unit, integration, and load testing to ensure API stability, speed, and reliability.

  • Deployment & Environment Configuration

    Setup of staging and production environments with CI/CD pipelines for smooth releases.

  • API Documentation

    Developer-friendly documentation with usage examples to make your API easy to understand and implement.

  • Post-Launch Support

    A defined period of support to fix bugs, optimize performance, or add minor enhancements after deployment.


Skills and tools

Backend Engineer

Java

Java

JavaScript

JavaScript

.NET

.NET

PHP

PHP

Python

Python

Industries

Computer Software