Open to opportunities

Khaled User

@khaleduser4

Message

I build scalable .NET backends, multi-tenant SaaS platforms, and secure payment APIs.

Egypt

Message

What I'm looking for

I'm looking to build scalable .NET backends and production APIs, with opportunities to deepen my work in SaaS, payments, cloud deployment, and clean architecture.

I've built production-ready .NET backends for multi-tenant SaaS, payment orchestration, and villa booking products using ASP.NET Core 8, Clean Architecture, and Docker.

On Tenantix Platform, I architected isolated multi-tenant organizations with Finbuckle and EF Core global query filters, permission-based authorization, JWT refresh token rotation, CQRS, and PostgreSQL deployment on Render.

I built CairoPaymentEngine to orchestrate Stripe and Paymob payments through an extensible provider abstraction, idempotent webhook processing, and tested end-to-end workflows. I also developed a full-stack villa reservation platform with ASP.NET Core MVC, Identity, and Stripe.

I bring strong problem-solving from ECPC, where my team ranked 19th among 300+ teams nationwide, alongside hands-on training in ASP.NET Core, Entity Framework Core, and web development best practices.

Experience

Work history, roles, and key accomplishments

Backend Developer (.NET)

Khaled Abd Elhanan

Backend developer with hands-on experience building scalable multi-tenant SaaS applications and production-ready REST APIs using ASP.NET Core, Clean Architecture, CQRS, Docker, and PostgreSQL.