I will develop and integrate secure rest apis for your application


About this gig
Looking for a reliable developer to build or integrate APIs?
I specialize in developing secure, scalable, and high-performance REST APIs for businesses, startups, and enterprise applications. Whether you need a brand-new API, integration with third-party services, or enhancements to an existing system, I can deliver clean, well-documented, and production-ready solutions.
With 5+ years of professional software engineering experience, I have successfully developed and integrated APIs for web, mobile, desktop, cloud, and enterprise applications using modern technologies and industry best practices.
RESTful API Development
ASP.NET Core Web API
CRUD Operations
Business Logic Implementation
Database Integration
API Documentation (Swagger/OpenAPI)
Third-Party API Integration
Payment Gateway Integration
Google APIs
Microsoft APIs
Firebase
Email & SMS Services
Social Login APIs
Cloud Service APIs
Webhooks
Custom REST APIs
Authentication & Security
JWT Authentication
OAuth 2.0
API Key Authentication
Role-Based Authorization
Token Refresh
CORS Configuration
Secure API Design
Performance & Optimization
Error Handling
Logging
Input Validation
Performance Optimization
Get to know Sandaru N
Senior Software Engineer
- FromThailand
- Member sinceMay 2020
Languages
English
Other Software Development Services I Offer
FAQ
Can you integrate third-party APIs?
Yes. I can integrate payment gateways, Google APIs, Microsoft APIs, Firebase, cloud services, email providers, SMS providers, and most REST APIs.
Can you develop custom APIs?
Yes. I can build secure REST APIs tailored to your business requirements.
Which technologies do you use?
ASP.NET Core C# Entity Framework Core SQL Server REST APIs JWT Authentication Swagger/OpenAPI Azure Services
Can you fix existing APIs?
Absolutely. I can debug, optimize, refactor, and improve existing APIs.

