I will build a secure REST API for your web or mobile APP

Need a reliable backend for your web or mobile app? I build clean, secure, and scalable REST APIs using ASP.NET Core and C#, backed by 13+ years of enterprise development experience across fintech, healthcare, and cybersecurity projects.

I'm new to OsDire, but not new to development. I bring enterprise-level quality and engineering discipline at a fraction of typical agency pricing, so startups and small businesses can get production-grade backend work without the agency overhead.

What I offer:

1. RESTful API design following industry best practices
2. JWT/OAuth authentication & role-based access control
3. Entity Framework Core with SQL Server integration
4. Swagger/OpenAPI documentation for every endpoint
5. Clean, layered architecture (controllers, services, repositories)
6. Robust error handling, structured logging, and input validation
7. Unit-testable, maintainable code structured for long-term growth

Whether you need a brand-new API built from scratch or help fixing, extending, or optimizing an existing ASP.NET Core project, I can support you from early-stage startup MVPs all the way to production-ready, enterprise-grade backends.

Why work with me:

1. 13+ years of hands-on .NET development experience
2. Proven experience in regulated industries like fintech and healthcare, where security and reliability aren't optional
3. Clear, jargon-free communication throughout the project
4. Clean, well-documented code that's easy for you or your team to hand off and maintain
5. Quick response times and regular progress updates so you're never left wondering about status

Not sure exactly what you need? Message me before ordering — I'll help you scope the project properly so you get the right solution the first time, not just a quick fix.