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OmarYassin22/README.md

Omar Yassin Sleem

.NET Backend Engineer | ASP.NET Core | Clean Architecture | REST APIs

About Me

.NET Backend Engineer with 2+ years of experience building scalable REST APIs, enterprise CMS platforms, and production-ready backend systems using ASP.NET Core and Clean Architecture.

I worked on government and enterprise platforms using Kentico and Umbraco CMS, focusing on API development, authentication, caching, SQL optimization, and maintainable backend architecture.

Tech Stack

Backend

  • ASP.NET Core
  • Web API
  • Entity Framework Core
  • LINQ
  • Clean Architecture
  • SOLID Principles

Security

  • JWT Authentication
  • ASP.NET Core Identity
  • RBAC
  • OAuth 2.0

Databases & Caching

  • SQL Server
  • Redis
  • EF Core Migrations
  • Query Optimization

DevOps & Tools

  • Docker
  • Azure DevOps
  • Swagger/OpenAPI
  • Git
  • Postman

CMS

  • Kentico 13
  • Experience by Kentico
  • Umbraco 17

Testing

  • xUnit
  • Unit Testing

Featured Projects

Full-Stack E-Commerce Platform

Production-ready book-selling platform built with ASP.NET Core and React.

Features

  • PayPal payment integration
  • JWT-secured APIs
  • Server-side order verification
  • Custom PDF protection system
  • Clean Architecture
  • SQL Server backend

Tech Stack

ASP.NET Core • React • SQL Server • PayPal

🔗 Repository: https://github.com/OmarYassin22/fullstack-ecommerce-app

E-Commerce REST API

Scalable REST API following Clean Architecture principles.

Features

  • JWT Authentication & RBAC
  • Redis caching
  • Stripe integration
  • xUnit testing
  • Layered architecture
  • Performance optimization

Tech Stack

ASP.NET Core • EF Core • Redis • SQL Server • xUnit

🔗 Repository: https://github.com/OmarYassin22/ecommerce-platform-api

Current Focus

Currently improving my expertise in:

  • Distributed systems
  • CI/CD pipelines
  • Cloud deployment
  • Scalable backend architecture

Connect With Me

Popular repositories Loading

  1. Ultimate_ASP.NET_Core_Web_API Ultimate_ASP.NET_Core_Web_API Public

    A production-ready ASP.NET Core API showcasing best practices from the "Ultimate ASP.NET Core" course. It includes secure authentication, efficient CRUD operations with Entity Framework, Redis cach…

    C# 2

  2. ecommerce-api-dotnet ecommerce-api-dotnet Public

    Scalable E-commerce REST API built with ASP.NET Core, featuring JWT authentication, Stripe integration, and Redis caching.

    C# 1

  3. ITI-Graduation-Web-Project ITI-Graduation-Web-Project Public

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  4. ITI-Graduation-Project-Mobile ITI-Graduation-Project-Mobile Public

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  5. SurvayBasket SurvayBasket Public

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  6. Demo-For-POC Demo-For-POC Public

    POC system for validating building designs against municipality regulations using ASP.NET Core and React, featuring authentication and dynamic rule evaluation.

    TypeScript 1